57039117990 has 32 divisors (see below), whose sum is σ = 137588790240. Its totient is φ = 15133219584.

The previous prime is 57039117977. The next prime is 57039117997. The reversal of 57039117990 is 9971193075.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57039117997) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4819735 + ... + 4831554.

It is an arithmetic number, because the mean of its divisors is an integer number (4299649695).

Almost surely, 2^57039117990 is an apocalyptic number.

57039117990 is an abundant number, since it is smaller than the sum of its proper divisors (80549672250).

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

57039117990 is a wasteful number, since it uses less digits than its factorization.

57039117990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9651496.

The product of its (nonzero) digits is 535815, while the sum is 51.

The spelling of 57039117990 in words is "fifty-seven billion, thirty-nine million, one hundred seventeen thousand, nine hundred ninety".