1057533721704 has 48 divisors (see below), whose sum is σ = 2864209385700. Its totient is φ = 352504402944.

The previous prime is 1057533721679. The next prime is 1057533721747. The reversal of 1057533721704 is 4071273357501.

1057533721704 is a `hidden beast` number, since 1 + 0 + 575 + 3 + 3 + 7 + 2 + 1 + 70 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1010423019204 + 47110702500 = 1005198^2 + 217050^2 .

It is a super-2 number, since 2×1057533721704² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1057533721704.

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, 4757752 + ... + 4975064.

Almost surely, 2^{1057533721704} is an apocalyptic number.

It is an amenable number.

1057533721704 is an abundant number, since it is smaller than the sum of its proper divisors (1806675663996).

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

1057533721704 is a wasteful number, since it uses less digits than its factorization.

1057533721704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284914 (or 284907 counting only the distinct ones).

The product of its (nonzero) digits is 617400, while the sum is 45.

The spelling of 1057533721704 in words is "one trillion, fifty-seven billion, five hundred thirty-three million, seven hundred twenty-one thousand, seven hundred four".