12491937902 has 8 divisors (see below), whose sum is σ = 18739048896. Its totient is φ = 6245588272.

The previous prime is 12491937893. The next prime is 12491937907. The reversal of 12491937902 is 20973919421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12491937907) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147383 + ... + 216114.

It is an arithmetic number, because the mean of its divisors is an integer number (2342381112).

Almost surely, 2^12491937902 is an apocalyptic number.

12491937902 is a deficient number, since it is larger than the sum of its proper divisors (6247110994).

12491937902 is a wasteful number, since it uses less digits than its factorization.

12491937902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380682.

The product of its (nonzero) digits is 244944, while the sum is 47.

The spelling of 12491937902 in words is "twelve billion, four hundred ninety-one million, nine hundred thirty-seven thousand, nine hundred two".