57117452490 has 144 divisors (see below), whose sum is σ = 179123937408. Its totient is φ = 12368241216.

The previous prime is 57117452461. The next prime is 57117452519. The reversal of 57117452490 is 9425471175.

57117452490 is a `hidden beast` number, since 5 + 7 + 117 + 4 + 524 + 9 + 0 = 666.

57117452490 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (57117452461) and next prime (57117452519).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 101859 + ... + 353001.

It is an arithmetic number, because the mean of its divisors is an integer number (1243916232).

Almost surely, 2^57117452490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57117452490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89561968704).

57117452490 is an abundant number, since it is smaller than the sum of its proper divisors (122006484918).

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

57117452490 is a wasteful number, since it uses less digits than its factorization.

57117452490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251201 (or 251179 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 45.

The spelling of 57117452490 in words is "fifty-seven billion, one hundred seventeen million, four hundred fifty-two thousand, four hundred ninety".