2957981878 has 8 divisors (see below), whose sum is σ = 4697971272. Its totient is φ = 1391991456.

The previous prime is 2957981857. The next prime is 2957981881. The reversal of 2957981878 is 8781897592.

2957981878 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 43499700 + ... + 43499767.

It is an arithmetic number, because the mean of its divisors is an integer number (587246409).

Almost surely, 2^2957981878 is an apocalyptic number.

2957981878 is a deficient number, since it is larger than the sum of its proper divisors (1739989394).

2957981878 is a wasteful number, since it uses less digits than its factorization.

2957981878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86999486.

The product of its digits is 20321280, while the sum is 64.

The square root of 2957981878 is about 54387.3319625076. The cubic root of 2957981878 is about 1435.4844852458.

The spelling of 2957981878 in words is "two billion, nine hundred fifty-seven million, nine hundred eighty-one thousand, eight hundred seventy-eight".