15054896721 has 16 divisors (see below), whose sum is σ = 20950493184. Its totient is φ = 9598138704.

The previous prime is 15054896687. The next prime is 15054896777. The reversal of 15054896721 is 12769845051.

It is a happy number.

It is not a de Polignac number, because 15054896721 - 2⁶ = 15054896657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15054896921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 335410 + ... + 377636.

It is an arithmetic number, because the mean of its divisors is an integer number (1309405824).

Almost surely, 2^15054896721 is an apocalyptic number.

It is an amenable number.

15054896721 is a deficient number, since it is larger than the sum of its proper divisors (5895596463).

15054896721 is a wasteful number, since it uses less digits than its factorization.

15054896721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47420.

The product of its (nonzero) digits is 604800, while the sum is 48.

The spelling of 15054896721 in words is "fifteen billion, fifty-four million, eight hundred ninety-six thousand, seven hundred twenty-one".