12920499613890 has 48 divisors (see below), whose sum is σ = 36647235271296. Its totient is φ = 3132242330400.

The previous prime is 12920499613849. The next prime is 12920499613919. The reversal of 12920499613890 is 9831699402921.

12920499613890 is a `hidden beast` number, since 1 + 2 + 9 + 2 + 0 + 4 + 9 + 9 + 613 + 8 + 9 + 0 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6525503866 + ... + 6525505845.

It is an arithmetic number, because the mean of its divisors is an integer number (763484068152).

Almost surely, 2^{12920499613890} is an apocalyptic number.

12920499613890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12920499613890 is an abundant number, since it is smaller than the sum of its proper divisors (23726735657406).

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

12920499613890 is a wasteful number, since it uses less digits than its factorization.

12920499613890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13051009735 (or 13051009732 counting only the distinct ones).

The product of its (nonzero) digits is 15116544, while the sum is 63.

The spelling of 12920499613890 in words is "twelve trillion, nine hundred twenty billion, four hundred ninety-nine million, six hundred thirteen thousand, eight hundred ninety".