15468005421 has 24 divisors (see below), whose sum is σ = 24381583200. Its totient is φ = 9371565600.

The previous prime is 15468005417. The next prime is 15468005447. The reversal of 15468005421 is 12450086451.

It is a happy number.

15468005421 is a `hidden beast` number, since 1 + 54 + 68 + 0 + 0 + 542 + 1 = 666.

It is not a de Polignac number, because 15468005421 - 2² = 15468005417 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15468005461) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 310555 + ... + 356903.

It is an arithmetic number, because the mean of its divisors is an integer number (1015899300).

Almost surely, 2^15468005421 is an apocalyptic number.

15468005421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

15468005421 is a deficient number, since it is larger than the sum of its proper divisors (8913577779).

15468005421 is a wasteful number, since it uses less digits than its factorization.

15468005421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49737 (or 49734 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The spelling of 15468005421 in words is "fifteen billion, four hundred sixty-eight million, five thousand, four hundred twenty-one".