47721406037564 has 24 divisors (see below), whose sum is σ = 95455290319200. Its totient is φ = 20449357249536.

The previous prime is 47721406037527. The next prime is 47721406037567. The reversal of 47721406037564 is 46573060412774.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47721406037567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111194897 + ... + 111623240.

It is an arithmetic number, because the mean of its divisors is an integer number (3977303763300).

Almost surely, 2^{47721406037564} is an apocalyptic number.

It is an amenable number.

47721406037564 is an abundant number, since it is smaller than the sum of its proper divisors (47733884281636).

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

47721406037564 is a wasteful number, since it uses less digits than its factorization.

47721406037564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222825797 (or 222825795 counting only the distinct ones).

The product of its (nonzero) digits is 23708160, while the sum is 56.

The spelling of 47721406037564 in words is "forty-seven trillion, seven hundred twenty-one billion, four hundred six million, thirty-seven thousand, five hundred sixty-four".