12885811435020 has 48 divisors (see below), whose sum is σ = 36281837813760. Its totient is φ = 3417019640256.

The previous prime is 12885811435009. The next prime is 12885811435033. The reversal of 12885811435020 is 2053411858821.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 599887372 + ... + 599908851.

It is an arithmetic number, because the mean of its divisors is an integer number (755871621120).

Almost surely, 2^{12885811435020} is an apocalyptic number.

12885811435020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12885811435020 is an abundant number, since it is smaller than the sum of its proper divisors (23396026378740).

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

12885811435020 is a wasteful number, since it uses less digits than its factorization.

12885811435020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1199796414 (or 1199796412 counting only the distinct ones).

The product of its (nonzero) digits is 614400, while the sum is 48.

The spelling of 12885811435020 in words is "twelve trillion, eight hundred eighty-five billion, eight hundred eleven million, four hundred thirty-five thousand, twenty".