12995461524778 has 16 divisors (see below), whose sum is σ = 19829003796000. Its totient is φ = 6385853797552.

The previous prime is 12995461524769. The next prime is 12995461524821. The reversal of 12995461524778 is 87742516459921.

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, 14617573 + ... + 15481096.

It is an arithmetic number, because the mean of its divisors is an integer number (1239312737250).

Almost surely, 2^{12995461524778} is an apocalyptic number.

12995461524778 is a deficient number, since it is larger than the sum of its proper divisors (6833542271222).

12995461524778 is a wasteful number, since it uses less digits than its factorization.

12995461524778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30102389.

The product of its digits is 304819200, while the sum is 70.

The spelling of 12995461524778 in words is "twelve trillion, nine hundred ninety-five billion, four hundred sixty-one million, five hundred twenty-four thousand, seven hundred seventy-eight".