57308477044 has 96 divisors (see below), whose sum is σ = 126254419200. Its totient is φ = 22617189504.

The previous prime is 57308477041. The next prime is 57308477047. The reversal of 57308477044 is 44077480375.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (57308477041) and next prime (57308477047).

It is a super-2 number, since 2×57308477044² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57308477041) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 7897722 + ... + 7904974.

It is an arithmetic number, because the mean of its divisors is an integer number (1315150200).

Almost surely, 2^57308477044 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 57308477044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63127209600).

57308477044 is an abundant number, since it is smaller than the sum of its proper divisors (68945942156).

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

57308477044 is a wasteful number, since it uses less digits than its factorization.

57308477044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7734 (or 7718 counting only the distinct ones).

The product of its (nonzero) digits is 2634240, while the sum is 49.

The spelling of 57308477044 in words is "fifty-seven billion, three hundred eight million, four hundred seventy-seven thousand, forty-four".