2938664678 has 8 divisors (see below), whose sum is σ = 4639996920. Its totient is φ = 1391999040.

The previous prime is 2938664669. The next prime is 2938664681. The reversal of 2938664678 is 8764668392.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 38666603 + ... + 38666678.

It is an arithmetic number, because the mean of its divisors is an integer number (579999615).

Almost surely, 2^2938664678 is an apocalyptic number.

2938664678 is a deficient number, since it is larger than the sum of its proper divisors (1701332242).

2938664678 is a wasteful number, since it uses less digits than its factorization.

2938664678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77333302.

The product of its digits is 20901888, while the sum is 59.

The square root of 2938664678 is about 54209.4519249180. The cubic root of 2938664678 is about 1432.3528316497.

The spelling of 2938664678 in words is "two billion, nine hundred thirty-eight million, six hundred sixty-four thousand, six hundred seventy-eight".