15400940154 has 32 divisors (see below), whose sum is σ = 30918678720. Its totient is φ = 5114212992.

The previous prime is 15400940153. The next prime is 15400940179. The reversal of 15400940154 is 45104900451.

It is not an unprimeable number, because it can be changed into a prime (15400940153) 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, 2263782 + ... + 2270574.

It is an arithmetic number, because the mean of its divisors is an integer number (966208710).

Almost surely, 2^15400940154 is an apocalyptic number.

15400940154 is an abundant number, since it is smaller than the sum of its proper divisors (15517738566).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15400940154 is a wasteful number, since it uses less digits than its factorization.

15400940154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8174.

The product of its (nonzero) digits is 14400, while the sum is 33.

The spelling of 15400940154 in words is "fifteen billion, four hundred million, nine hundred forty thousand, one hundred fifty-four".