57031346561445 has 12 divisors (see below), whose sum is σ = 98854334039916. Its totient is φ = 30416718166080.

The previous prime is 57031346561417. The next prime is 57031346561509. The reversal of 57031346561445 is 54416564313075.

57031346561445 is a `hidden beast` number, since 5 + 7 + 0 + 3 + 1 + 34 + 6 + 561 + 4 + 45 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 34181866268676 + 22849480292769 = 5846526^2 + 4780113^2 .

It is not a de Polignac number, because 57031346561445 - 2⁷ = 57031346561317 is a prime.

It is a super-2 number, since 2×57031346561445² (a number of 28 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 57031346561391 and 57031346561400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 633681628416 + ... + 633681628505.

It is an arithmetic number, because the mean of its divisors is an integer number (8237861169993).

Almost surely, 2^{57031346561445} is an apocalyptic number.

It is an amenable number.

57031346561445 is a deficient number, since it is larger than the sum of its proper divisors (41822987478471).

57031346561445 is a wasteful number, since it uses less digits than its factorization.

57031346561445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1267363256932 (or 1267363256929 counting only the distinct ones).

The product of its (nonzero) digits is 18144000, while the sum is 54.

The spelling of 57031346561445 in words is "fifty-seven trillion, thirty-one billion, three hundred forty-six million, five hundred sixty-one thousand, four hundred forty-five".