12485920890 has 16 divisors (see below), whose sum is σ = 29966210208. Its totient is φ = 3329578896.

The previous prime is 12485920883. The next prime is 12485920903. The reversal of 12485920890 is 9802958421.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 208098652 + ... + 208098711.

It is an arithmetic number, because the mean of its divisors is an integer number (1872888138).

Almost surely, 2^12485920890 is an apocalyptic number.

12485920890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12485920890 is an abundant number, since it is smaller than the sum of its proper divisors (17480289318).

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

12485920890 is a wasteful number, since it uses less digits than its factorization.

12485920890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416197373.

The product of its (nonzero) digits is 414720, while the sum is 48.

The spelling of 12485920890 in words is "twelve billion, four hundred eighty-five million, nine hundred twenty thousand, eight hundred ninety".