15420438514 has 32 divisors (see below), whose sum is σ = 25347502656. Its totient is φ = 6992377920.

The previous prime is 15420438503. The next prime is 15420438529. The reversal of 15420438514 is 41583402451.

It is an unprimeable number.

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, 1496809 + ... + 1507075.

It is an arithmetic number, because the mean of its divisors is an integer number (792109458).

Almost surely, 2^15420438514 is an apocalyptic number.

15420438514 is a deficient number, since it is larger than the sum of its proper divisors (9927064142).

15420438514 is a wasteful number, since it uses less digits than its factorization.

15420438514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11290.

The product of its (nonzero) digits is 76800, while the sum is 37.

The spelling of 15420438514 in words is "fifteen billion, four hundred twenty million, four hundred thirty-eight thousand, five hundred fourteen".