15049638129 has 4 divisors (see below), whose sum is σ = 20066184176. Its totient is φ = 10033092084.

The previous prime is 15049638113. The next prime is 15049638137. The reversal of 15049638129 is 92183694051.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 15049638129 - 2⁴ = 15049638113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15049630129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2508273019 + ... + 2508273024.

It is an arithmetic number, because the mean of its divisors is an integer number (5016546044).

Almost surely, 2^15049638129 is an apocalyptic number.

It is an amenable number.

15049638129 is a deficient number, since it is larger than the sum of its proper divisors (5016546047).

15049638129 is an equidigital number, since it uses as much as digits as its factorization.

15049638129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5016546046.

The product of its (nonzero) digits is 466560, while the sum is 48.

The spelling of 15049638129 in words is "fifteen billion, forty-nine million, six hundred thirty-eight thousand, one hundred twenty-nine".