57927451890 has 192 divisors, whose sum is σ = 184128795648. Its totient is φ = 11328691200.

The previous prime is 57927451837. The next prime is 57927451909. The reversal of 57927451890 is 9815472975.

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 57927451890.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 624205 + ... + 710975.

It is an arithmetic number, because the mean of its divisors is an integer number (959004144).

Almost surely, 2^57927451890 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57927451890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92064397824).

57927451890 is an abundant number, since it is smaller than the sum of its proper divisors (126201343758).

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

57927451890 is a wasteful number, since it uses less digits than its factorization.

57927451890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86833 (or 86816 counting only the distinct ones).

The product of its (nonzero) digits is 6350400, while the sum is 57.

The spelling of 57927451890 in words is "fifty-seven billion, nine hundred twenty-seven million, four hundred fifty-one thousand, eight hundred ninety".