12479995554 has 16 divisors (see below), whose sum is σ = 26879990592. Its totient is φ = 3839998608.

The previous prime is 12479995553. The next prime is 12479995589. The reversal of 12479995554 is 45559997421.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12479995553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79999894 + ... + 80000049.

It is an arithmetic number, because the mean of its divisors is an integer number (1679999412).

Almost surely, 2^12479995554 is an apocalyptic number.

12479995554 is an abundant number, since it is smaller than the sum of its proper divisors (14399995038).

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

12479995554 is a wasteful number, since it uses less digits than its factorization.

12479995554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159999961.

The product of its digits is 20412000, while the sum is 60.

The spelling of 12479995554 in words is "twelve billion, four hundred seventy-nine million, nine hundred ninety-five thousand, five hundred fifty-four".