15401873855 has 8 divisors (see below), whose sum is σ = 18651811200. Its totient is φ = 12208457376.

The previous prime is 15401873807. The next prime is 15401873873. The reversal of 15401873855 is 55837810451.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 15401873855 - 2¹⁰ = 15401872831 is a prime.

It is a super-2 number, since 2×15401873855² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14129615 + ... + 14130704.

It is an arithmetic number, because the mean of its divisors is an integer number (2331476400).

Almost surely, 2^15401873855 is an apocalyptic number.

15401873855 is a deficient number, since it is larger than the sum of its proper divisors (3249937345).

15401873855 is a wasteful number, since it uses less digits than its factorization.

15401873855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28260433.

The product of its (nonzero) digits is 672000, while the sum is 47.

The spelling of 15401873855 in words is "fifteen billion, four hundred one million, eight hundred seventy-three thousand, eight hundred fifty-five".