57906809298 has 54 divisors (see below), whose sum is σ = 135889429221. Its totient is φ = 17813396016.

The previous prime is 57906809291. The next prime is 57906809339. The reversal of 57906809298 is 89290860975.

It can be written as a sum of positive squares in 2 ways, for example, as 49512035169 + 8394774129 = 222513^2 + 91623^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=170157.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (57906809291) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 13270065 + ... + 13274427.

Almost surely, 2^57906809298 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57906809298

57906809298 is an abundant number, since it is smaller than the sum of its proper divisors (77982619923).

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

57906809298 is an equidigital number, since it uses as much as digits as its factorization.

57906809298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8760 (or 4381 counting only the distinct ones).

The product of its (nonzero) digits is 19595520, while the sum is 63.

The spelling of 57906809298 in words is "fifty-seven billion, nine hundred six million, eight hundred nine thousand, two hundred ninety-eight".