12634253772 has 24 divisors (see below), whose sum is σ = 33691343616. Its totient is φ = 3609786768.

The previous prime is 12634253759. The next prime is 12634253773. The reversal of 12634253772 is 27735243621.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (12634253773) 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, 75203808 + ... + 75203975.

It is an arithmetic number, because the mean of its divisors is an integer number (1403805984).

Almost surely, 2^12634253772 is an apocalyptic number.

12634253772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12634253772 is an abundant number, since it is smaller than the sum of its proper divisors (21057089844).

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

12634253772 is a wasteful number, since it uses less digits than its factorization.

12634253772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150407797 (or 150407795 counting only the distinct ones).

The product of its digits is 423360, while the sum is 42.

The spelling of 12634253772 in words is "twelve billion, six hundred thirty-four million, two hundred fifty-three thousand, seven hundred seventy-two".