6387892893 has 12 divisors (see below), whose sum is σ = 9401050620. Its totient is φ = 4178244096.

The previous prime is 6387892883. The next prime is 6387892897. The reversal of 6387892893 is 3982987836.

It can be written as a sum of positive squares in 2 ways, for example, as 2627382564 + 3760510329 = 51258^2 + 61323^2 .

It is not a de Polignac number, because 6387892893 - 2¹⁰ = 6387891869 is a prime.

It is a super-2 number, since 2×6387892893² = 81610351224879818898, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6387892893.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6387892897) 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, 6695428 + ... + 6696381.

It is an arithmetic number, because the mean of its divisors is an integer number (783420885).

Almost surely, 2^6387892893 is an apocalyptic number.

It is an amenable number.

6387892893 is a deficient number, since it is larger than the sum of its proper divisors (3013157727).

6387892893 is a wasteful number, since it uses less digits than its factorization.

6387892893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13391868 (or 13391865 counting only the distinct ones).

The product of its digits is 31352832, while the sum is 63.

The square root of 6387892893 is about 79924.2947607297. The cubic root of 6387892893 is about 1855.4640399853.

The spelling of 6387892893 in words is "six billion, three hundred eighty-seven million, eight hundred ninety-two thousand, eight hundred ninety-three".