12491790970086 has 64 divisors (see below), whose sum is σ = 28562938968000. Its totient is φ = 4095669083040.

The previous prime is 12491790970073. The next prime is 12491790970093. The reversal of 12491790970086 is 68007909719421.

12491790970086 is a `hidden beast` number, since 1 + 2 + 491 + 79 + 0 + 9 + 70 + 0 + 8 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23142361 + ... + 23675988.

It is an arithmetic number, because the mean of its divisors is an integer number (446295921375).

Almost surely, 2^{12491790970086} is an apocalyptic number.

12491790970086 is an abundant number, since it is smaller than the sum of its proper divisors (16071147997914).

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

12491790970086 is an frugal number, since it uses more digits than its factorization.

12491790970086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46818433 (or 46818415 counting only the distinct ones).

The product of its (nonzero) digits is 13716864, while the sum is 63.

The spelling of 12491790970086 in words is "twelve trillion, four hundred ninety-one billion, seven hundred ninety million, nine hundred seventy thousand, eighty-six".