42661077144 has 32 divisors (see below), whose sum is σ = 121888792320. Its totient is φ = 12188879136.

The previous prime is 42661077103. The next prime is 42661077163. The reversal of 42661077144 is 44177016624.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 42661077096 and 42661077105.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126967324 + ... + 126967659.

It is an arithmetic number, because the mean of its divisors is an integer number (3809024760).

Almost surely, 2^42661077144 is an apocalyptic number.

It is an amenable number.

42661077144 is an abundant number, since it is smaller than the sum of its proper divisors (79227715176).

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

42661077144 is a wasteful number, since it uses less digits than its factorization.

42661077144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253934999 (or 253934995 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 42.

The spelling of 42661077144 in words is "forty-two billion, six hundred sixty-one million, seventy-seven thousand, one hundred forty-four".