47218917612 has 12 divisors (see below), whose sum is σ = 110177474456. Its totient is φ = 15739639200.

The previous prime is 47218917547. The next prime is 47218917619. The reversal of 47218917612 is 21671981274.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (47218917619) 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, 1967454889 + ... + 1967454912.

Almost surely, 2^47218917612 is an apocalyptic number.

It is an amenable number.

47218917612 is an abundant number, since it is smaller than the sum of its proper divisors (62958556844).

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

47218917612 is a wasteful number, since it uses less digits than its factorization.

47218917612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3934909808 (or 3934909806 counting only the distinct ones).

The product of its digits is 338688, while the sum is 48.

The spelling of 47218917612 in words is "forty-seven billion, two hundred eighteen million, nine hundred seventeen thousand, six hundred twelve".