1158772947893 has 12 divisors (see below), whose sum is σ = 1275340408524. Its totient is φ = 1052067086400.

The previous prime is 1158772947887. The next prime is 1158772947901. The reversal of 1158772947893 is 3987492778511.

It can be written as a sum of positive squares in 2 ways, for example, as 312036194404 + 846736753489 = 558602^2 + 920183^2 .

It is not a de Polignac number, because 1158772947893 - 2¹⁴ = 1158772931509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1158772943893) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6100928 + ... + 6287993.

It is an arithmetic number, because the mean of its divisors is an integer number (106278367377).

Almost surely, 2^{1158772947893} is an apocalyptic number.

It is an amenable number.

1158772947893 is a deficient number, since it is larger than the sum of its proper divisors (116567460631).

1158772947893 is a wasteful number, since it uses less digits than its factorization.

1158772947893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12389716 (or 12389705 counting only the distinct ones).

The product of its digits is 213373440, while the sum is 71.

The spelling of 1158772947893 in words is "one trillion, one hundred fifty-eight billion, seven hundred seventy-two million, nine hundred forty-seven thousand, eight hundred ninety-three".