12617055492 has 12 divisors (see below), whose sum is σ = 29439796176. Its totient is φ = 4205685160.

The previous prime is 12617055481. The next prime is 12617055523. The reversal of 12617055492 is 29455071621.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 525710634 + ... + 525710657.

It is an arithmetic number, because the mean of its divisors is an integer number (2453316348).

Almost surely, 2^12617055492 is an apocalyptic number.

12617055492 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12617055492 is an abundant number, since it is smaller than the sum of its proper divisors (16822740684).

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

12617055492 is a wasteful number, since it uses less digits than its factorization.

12617055492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1051421298 (or 1051421296 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 42.

The spelling of 12617055492 in words is "twelve billion, six hundred seventeen million, fifty-five thousand, four hundred ninety-two".