18628777102413 has 16 divisors (see below), whose sum is σ = 26303584968576. Its totient is φ = 11686806704640.

The previous prime is 18628777102393. The next prime is 18628777102423. The reversal of 18628777102413 is 31420177782681.

It is not a de Polignac number, because 18628777102413 - 2²¹ = 18628775005261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18628777102423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28387281 + ... + 29036102.

It is an arithmetic number, because the mean of its divisors is an integer number (1643974060536).

Almost surely, 2^{18628777102413} is an apocalyptic number.

It is an amenable number.

18628777102413 is a deficient number, since it is larger than the sum of its proper divisors (7674807866163).

18628777102413 is a wasteful number, since it uses less digits than its factorization.

18628777102413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57429764.

The product of its (nonzero) digits is 6322176, while the sum is 57.

The spelling of 18628777102413 in words is "eighteen trillion, six hundred twenty-eight billion, seven hundred seventy-seven million, one hundred two thousand, four hundred thirteen".