47690313978 has 8 divisors (see below), whose sum is σ = 95380627968. Its totient is φ = 15896771324.

The previous prime is 47690313917. The next prime is 47690314043. The reversal of 47690313978 is 87931309674.

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

47690313978 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3974192826 + ... + 3974192837.

It is an arithmetic number, because the mean of its divisors is an integer number (11922578496).

Almost surely, 2^47690313978 is an apocalyptic number.

47690313978 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

47690313978 is a wasteful number, since it uses less digits than its factorization.

47690313978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7948385668.

The product of its (nonzero) digits is 6858432, while the sum is 57.

The spelling of 47690313978 in words is "forty-seven billion, six hundred ninety million, three hundred thirteen thousand, nine hundred seventy-eight".