47631978722 has 8 divisors (see below), whose sum is σ = 71458220736. Its totient is φ = 23812571812.

The previous prime is 47631978697. The next prime is 47631978727. The reversal of 47631978722 is 22787913674.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (47631978727) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1691318 + ... + 1719249.

It is an arithmetic number, because the mean of its divisors is an integer number (8932277592).

Almost surely, 2^47631978722 is an apocalyptic number.

47631978722 is a deficient number, since it is larger than the sum of its proper divisors (23826242014).

47631978722 is a wasteful number, since it uses less digits than its factorization.

47631978722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3417552.

The product of its digits is 7112448, while the sum is 56.

The spelling of 47631978722 in words is "forty-seven billion, six hundred thirty-one million, nine hundred seventy-eight thousand, seven hundred twenty-two".