57238737578 has 48 divisors (see below), whose sum is σ = 95726292480. Its totient is φ = 25645620000.

The previous prime is 57238737547. The next prime is 57238737601. The reversal of 57238737578 is 87573783275.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 57238737578.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13399583 + ... + 13403853.

It is an arithmetic number, because the mean of its divisors is an integer number (1994297760).

Almost surely, 2^57238737578 is an apocalyptic number.

57238737578 is a deficient number, since it is larger than the sum of its proper divisors (38487554902).

57238737578 is a wasteful number, since it uses less digits than its factorization.

57238737578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5075 (or 5064 counting only the distinct ones).

The product of its digits is 69148800, while the sum is 62.

The spelling of 57238737578 in words is "fifty-seven billion, two hundred thirty-eight million, seven hundred thirty-seven thousand, five hundred seventy-eight".