57420994824 has 128 divisors (see below), whose sum is σ = 162278899200. Its totient is φ = 18807828480.

The previous prime is 57420994811. The next prime is 57420994831. The reversal of 57420994824 is 42849902475.

It is a happy number.

57420994824 is a `hidden beast` number, since 5 + 74 + 2 + 0 + 99 + 482 + 4 = 666.

57420994824 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20856232 + ... + 20858984.

It is an arithmetic number, because the mean of its divisors is an integer number (1267803900).

Almost surely, 2^57420994824 is an apocalyptic number.

57420994824 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57420994824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81139449600).

57420994824 is an abundant number, since it is smaller than the sum of its proper divisors (104857904376).

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

57420994824 is a wasteful number, since it uses less digits than its factorization.

57420994824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4412 (or 4402 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 54.

The spelling of 57420994824 in words is "fifty-seven billion, four hundred twenty million, nine hundred ninety-four thousand, eight hundred twenty-four".