57678222431 has 4 divisors (see below), whose sum is σ = 57717756600. Its totient is φ = 57638688264.

The previous prime is 57678222419. The next prime is 57678222439. The reversal of 57678222431 is 13422287675.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57678222431 is a prime.

It is a super-2 number, since 2×57678222431² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57678222439) 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 3 ways as a sum of consecutive naturals, for example, 19764896 + ... + 19767813.

It is an arithmetic number, because the mean of its divisors is an integer number (14429439150).

Almost surely, 2^57678222431 is an apocalyptic number.

57678222431 is a deficient number, since it is larger than the sum of its proper divisors (39534169).

57678222431 is a wasteful number, since it uses less digits than its factorization.

57678222431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39534168.

The product of its digits is 1128960, while the sum is 47.

The spelling of 57678222431 in words is "fifty-seven billion, six hundred seventy-eight million, two hundred twenty-two thousand, four hundred thirty-one".