15139261982 has 32 divisors (see below), whose sum is σ = 24824076480. Its totient is φ = 6882301440.

The previous prime is 15139261961. The next prime is 15139261987. The reversal of 15139261982 is 28916293151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15139261987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2265398 + ... + 2272070.

It is an arithmetic number, because the mean of its divisors is an integer number (775752390).

Almost surely, 2^15139261982 is an apocalyptic number.

15139261982 is a deficient number, since it is larger than the sum of its proper divisors (9684814498).

15139261982 is a wasteful number, since it uses less digits than its factorization.

15139261982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7988.

The product of its digits is 233280, while the sum is 47.

The spelling of 15139261982 in words is "fifteen billion, one hundred thirty-nine million, two hundred sixty-one thousand, nine hundred eighty-two".