2779940400608 has 24 divisors (see below), whose sum is σ = 6254865901872. Its totient is φ = 1191403028736.

The previous prime is 2779940400599. The next prime is 2779940400613. The reversal of 2779940400608 is 8060040499772.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6205223885 + ... + 6205224332.

It is an arithmetic number, because the mean of its divisors is an integer number (260619412578).

Almost surely, 2^{2779940400608} is an apocalyptic number.

2779940400608 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2779940400608 is an abundant number, since it is smaller than the sum of its proper divisors (3474925501264).

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

2779940400608 is a wasteful number, since it uses less digits than its factorization.

2779940400608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12410448234 (or 12410448226 counting only the distinct ones).

The product of its (nonzero) digits is 6096384, while the sum is 56.

The spelling of 2779940400608 in words is "two trillion, seven hundred seventy-nine billion, nine hundred forty million, four hundred thousand, six hundred eight".