61174968444 has 60 divisors (see below), whose sum is σ = 161720420400. Its totient is φ = 20162526912.

The previous prime is 61174968347. The next prime is 61174968473. The reversal of 61174968444 is 44486947116.

61174968444 is a `hidden beast` number, since 61 + 17 + 496 + 84 + 4 + 4 = 666.

It is a super-2 number, since 2×61174968444² (a number of 22 digits) contains 22 as substring.

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 polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1031904 + ... + 1089575.

It is an arithmetic number, because the mean of its divisors is an integer number (2695340340).

Almost surely, 2^61174968444 is an apocalyptic number.

It is an amenable number.

61174968444 is an abundant number, since it is smaller than the sum of its proper divisors (100545451956).

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

61174968444 is a wasteful number, since it uses less digits than its factorization.

61174968444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2121584 (or 2121573 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 54.

The spelling of 61174968444 in words is "sixty-one billion, one hundred seventy-four million, nine hundred sixty-eight thousand, four hundred forty-four".