12778002082920 has 64 divisors (see below), whose sum is σ = 39655868544000. Its totient is φ = 3289968351488.

The previous prime is 12778002082877. The next prime is 12778002082927. The reversal of 12778002082920 is 2928020087721.

12778002082920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12778002082920² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12778002082920.

It is not an unprimeable number, because it can be changed into a prime (12778002082927) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1835916360 + ... + 1835923319.

It is an arithmetic number, because the mean of its divisors is an integer number (619622946000).

Almost surely, 2^{12778002082920} is an apocalyptic number.

12778002082920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12778002082920 is an abundant number, since it is smaller than the sum of its proper divisors (26877866461080).

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

12778002082920 is a wasteful number, since it uses less digits than its factorization.

12778002082920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3671839722 (or 3671839718 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 48.

The spelling of 12778002082920 in words is "twelve trillion, seven hundred seventy-eight billion, two million, eighty-two thousand, nine hundred twenty".