4561074742644 has 144 divisors (see below), whose sum is σ = 13666424099328. Its totient is φ = 1302976365408.

The previous prime is 4561074742639. The next prime is 4561074742663. The reversal of 4561074742644 is 4462474701654.

It is a happy number.

4561074742644 is a `hidden beast` number, since 4 + 5 + 6 + 107 + 474 + 2 + 64 + 4 = 666.

It is a super-2 number, since 2×4561074742644² (a number of 26 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 51141939 + ... + 51231045.

It is an arithmetic number, because the mean of its divisors is an integer number (94905722912).

Almost surely, 2^{4561074742644} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4561074742644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6833212049664).

4561074742644 is an abundant number, since it is smaller than the sum of its proper divisors (9105349356684).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4561074742644 is a wasteful number, since it uses less digits than its factorization.

4561074742644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96656 (or 96642 counting only the distinct ones).

The product of its (nonzero) digits is 18063360, while the sum is 54.

The spelling of 4561074742644 in words is "four trillion, five hundred sixty-one billion, seventy-four million, seven hundred forty-two thousand, six hundred forty-four".