15049378616 has 16 divisors (see below), whose sum is σ = 28491543600. Its totient is φ = 7451633664.

The previous prime is 15049378613. The next prime is 15049378627. The reversal of 15049378616 is 61687394051.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15049378613) 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, 9131081 + ... + 9132728.

It is an arithmetic number, because the mean of its divisors is an integer number (1780721475).

Almost surely, 2^15049378616 is an apocalyptic number.

It is an amenable number.

15049378616 is a deficient number, since it is larger than the sum of its proper divisors (13442164984).

15049378616 is a wasteful number, since it uses less digits than its factorization.

15049378616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18263918 (or 18263914 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 50.

The spelling of 15049378616 in words is "fifteen billion, forty-nine million, three hundred seventy-eight thousand, six hundred sixteen".