2940904782478 has 16 divisors (see below), whose sum is σ = 4751438751360. Its totient is φ = 1357127408736.

The previous prime is 2940904782451. The next prime is 2940904782481. The reversal of 2940904782478 is 8742874090492.

It is a congruent number.

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, 8717113 + ... + 9048196.

It is an arithmetic number, because the mean of its divisors is an integer number (296964921960).

Almost surely, 2^{2940904782478} is an apocalyptic number.

2940904782478 is a deficient number, since it is larger than the sum of its proper divisors (1810533968882).

2940904782478 is a wasteful number, since it uses less digits than its factorization.

2940904782478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17771691.

The product of its (nonzero) digits is 65028096, while the sum is 64.

The spelling of 2940904782478 in words is "two trillion, nine hundred forty billion, nine hundred four million, seven hundred eighty-two thousand, four hundred seventy-eight".