2683942138978 has 16 divisors (see below), whose sum is σ = 4119669845280. Its totient is φ = 1310720838336.

The previous prime is 2683942138951. The next prime is 2683942139009. The reversal of 2683942138978 is 8798312493862.

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, 2322826 + ... + 3280762.

It is an arithmetic number, because the mean of its divisors is an integer number (257479365330).

Almost surely, 2^{2683942138978} is an apocalyptic number.

2683942138978 is a deficient number, since it is larger than the sum of its proper divisors (1435727706302).

2683942138978 is a wasteful number, since it uses less digits than its factorization.

2683942138978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 990561.

The product of its digits is 250822656, while the sum is 70.

The spelling of 2683942138978 in words is "two trillion, six hundred eighty-three billion, nine hundred forty-two million, one hundred thirty-eight thousand, nine hundred seventy-eight".