57444718947 has 48 divisors (see below), whose sum is σ = 97318381824. Its totient is φ = 29804376000.

The previous prime is 57444718943. The next prime is 57444718949. The reversal of 57444718947 is 74981744475.

It is not a de Polignac number, because 57444718947 - 2² = 57444718943 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57444718943) 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 47 ways as a sum of consecutive naturals, for example, 1305922 + ... + 1349192.

It is an arithmetic number, because the mean of its divisors is an integer number (2027466288).

Almost surely, 2^57444718947 is an apocalyptic number.

57444718947 is a deficient number, since it is larger than the sum of its proper divisors (39873662877).

57444718947 is a wasteful number, since it uses less digits than its factorization.

57444718947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44120 (or 44113 counting only the distinct ones).

The product of its digits is 31610880, while the sum is 60.

The spelling of 57444718947 in words is "fifty-seven billion, four hundred forty-four million, seven hundred eighteen thousand, nine hundred forty-seven".