12611629974 has 16 divisors (see below), whose sum is σ = 26319923712. Its totient is φ = 4021099368.

The previous prime is 12611629973. The next prime is 12611629993. The reversal of 12611629974 is 47992611621.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12611629973) 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, 45694174 + ... + 45694449.

It is an arithmetic number, because the mean of its divisors is an integer number (1644995232).

Almost surely, 2^12611629974 is an apocalyptic number.

12611629974 is an abundant number, since it is smaller than the sum of its proper divisors (13708293738).

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

12611629974 is a wasteful number, since it uses less digits than its factorization.

12611629974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91388651.

The product of its digits is 326592, while the sum is 48.

The spelling of 12611629974 in words is "twelve billion, six hundred eleven million, six hundred twenty-nine thousand, nine hundred seventy-four".