1057615473387 has 24 divisors (see below), whose sum is σ = 1550835149248. Its totient is φ = 640635343920.

The previous prime is 1057615473307. The next prime is 1057615473403. The reversal of 1057615473387 is 7833745167501.

It is not a de Polignac number, because 1057615473387 - 2⁷ = 1057615473259 is a prime.

It is a super-2 number, since 2×1057615473387² (a number of 25 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1057615473307) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 102553 + ... + 1457994.

Almost surely, 2^{1057615473387} is an apocalyptic number.

1057615473387 is a deficient number, since it is larger than the sum of its proper divisors (493219675861).

1057615473387 is a wasteful number, since it uses less digits than its factorization.

1057615473387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1562439 (or 1562428 counting only the distinct ones).

The product of its (nonzero) digits is 14817600, while the sum is 57.

The spelling of 1057615473387 in words is "one trillion, fifty-seven billion, six hundred fifteen million, four hundred seventy-three thousand, three hundred eighty-seven".