47721311711620 has 24 divisors (see below), whose sum is σ = 100215593314200. Its totient is φ = 19088364928512.

The previous prime is 47721311711611. The next prime is 47721311711621. The reversal of 47721311711620 is 2611711312774.

It can be written as a sum of positive squares in 4 ways, for example, as 4826636676 + 47716485074944 = 69474^2 + 6907712^2 .

It is not an unprimeable number, because it can be changed into a prime (47721311711621) 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, 7520475 + ... + 12328834.

It is an arithmetic number, because the mean of its divisors is an integer number (4175649721425).

Almost surely, 2^{47721311711620} is an apocalyptic number.

It is an amenable number.

47721311711620 is an abundant number, since it is smaller than the sum of its proper divisors (52494281602580).

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

47721311711620 is a wasteful number, since it uses less digits than its factorization.

47721311711620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19969527 (or 19969525 counting only the distinct ones).

The product of its (nonzero) digits is 98784, while the sum is 43.

The spelling of 47721311711620 in words is "forty-seven trillion, seven hundred twenty-one billion, three hundred eleven million, seven hundred eleven thousand, six hundred twenty".