12578879470020 has 96 divisors (see below), whose sum is σ = 35251164748800. Its totient is φ = 3351483058560.

The previous prime is 12578879469889. The next prime is 12578879470037. The reversal of 12578879470020 is 2007497887521.

It is a hoax number, since the sum of its digits (60) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 429254689 + ... + 429283991.

It is an arithmetic number, because the mean of its divisors is an integer number (367199632800).

Almost surely, 2^{12578879470020} is an apocalyptic number.

12578879470020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12578879470020 is an abundant number, since it is smaller than the sum of its proper divisors (22672285278780).

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

12578879470020 is a wasteful number, since it uses less digits than its factorization.

12578879470020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35225 (or 35223 counting only the distinct ones).

The product of its (nonzero) digits is 15805440, while the sum is 60.

The spelling of 12578879470020 in words is "twelve trillion, five hundred seventy-eight billion, eight hundred seventy-nine million, four hundred seventy thousand, twenty".