15406986639102 has 64 divisors (see below), whose sum is σ = 31244507136000. Its totient is φ = 5064470611200.

The previous prime is 15406986639101. The next prime is 15406986639127. The reversal of 15406986639102 is 20193668960451.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15406986639101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 104450602 + ... + 104598002.

It is an arithmetic number, because the mean of its divisors is an integer number (488195424000).

Almost surely, 2^{15406986639102} is an apocalyptic number.

15406986639102 is an abundant number, since it is smaller than the sum of its proper divisors (15837520496898).

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

15406986639102 is a wasteful number, since it uses less digits than its factorization.

15406986639102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148361.

The product of its (nonzero) digits is 16796160, while the sum is 60.

The spelling of 15406986639102 in words is "fifteen trillion, four hundred six billion, nine hundred eighty-six million, six hundred thirty-nine thousand, one hundred two".