47238536978 has 8 divisors (see below), whose sum is σ = 71520028272. Its totient is φ = 23398527556.

The previous prime is 47238536941. The next prime is 47238536981. The reversal of 47238536978 is 87963583274.

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

It is a self number, because there is not a number n which added to its sum of digits gives 47238536978.

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, 110370200 + ... + 110370627.

It is an arithmetic number, because the mean of its divisors is an integer number (8940003534).

Almost surely, 2^47238536978 is an apocalyptic number.

47238536978 is a deficient number, since it is larger than the sum of its proper divisors (24281491294).

47238536978 is a wasteful number, since it uses less digits than its factorization.

47238536978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220740936.

The product of its digits is 60963840, while the sum is 62.

The spelling of 47238536978 in words is "forty-seven billion, two hundred thirty-eight million, five hundred thirty-six thousand, nine hundred seventy-eight".