57057344540 has 24 divisors (see below), whose sum is σ = 136937627232. Its totient is φ = 19562518080.

The previous prime is 57057344537. The next prime is 57057344557. The reversal of 57057344540 is 4544375075.

It is a happy number.

57057344540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 57057344491 and 57057344500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203776091 + ... + 203776370.

It is an arithmetic number, because the mean of its divisors is an integer number (5705734468).

Almost surely, 2^57057344540 is an apocalyptic number.

It is an amenable number.

57057344540 is an abundant number, since it is smaller than the sum of its proper divisors (79880282692).

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

57057344540 is a wasteful number, since it uses less digits than its factorization.

57057344540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407552477 (or 407552475 counting only the distinct ones).

The product of its (nonzero) digits is 1176000, while the sum is 44.

The spelling of 57057344540 in words is "fifty-seven billion, fifty-seven million, three hundred forty-four thousand, five hundred forty".