12895812075780 has 72 divisors (see below), whose sum is σ = 39117837088512. Its totient is φ = 3438835707456.

The previous prime is 12895812075763. The next prime is 12895812075823. The reversal of 12895812075780 is 8757021859821.

12895812075780 is a `hidden beast` number, since 1 + 2 + 8 + 9 + 58 + 1 + 2 + 0 + 7 + 578 + 0 = 666.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

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, 13696527 + ... + 14607753.

It is an arithmetic number, because the mean of its divisors is an integer number (543303292896).

Almost surely, 2^{12895812075780} is an apocalyptic number.

12895812075780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12895812075780 is an abundant number, since it is smaller than the sum of its proper divisors (26222025012732).

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

12895812075780 is a wasteful number, since it uses less digits than its factorization.

12895812075780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 989865 (or 989860 counting only the distinct ones).

The product of its (nonzero) digits is 22579200, while the sum is 63.

The spelling of 12895812075780 in words is "twelve trillion, eight hundred ninety-five billion, eight hundred twelve million, seventy-five thousand, seven hundred eighty".