47721468437802 has 24 divisors (see below), whose sum is σ = 103400631867780. Its totient is φ = 15906522773760.

The previous prime is 47721468437743. The next prime is 47721468437891. The reversal of 47721468437802 is 20873486412774.

47721468437802 is a `hidden beast` number, since 4 + 77 + 21 + 468 + 4 + 3 + 7 + 80 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 42259997591361 + 5461470846441 = 6500769^2 + 2336979^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 47721468437802.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52316277 + ... + 53220632.

Almost surely, 2^{47721468437802} is an apocalyptic number.

47721468437802 is an abundant number, since it is smaller than the sum of its proper divisors (55679163429978).

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

47721468437802 is a wasteful number, since it uses less digits than its factorization.

47721468437802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105562038 (or 105562035 counting only the distinct ones).

The product of its (nonzero) digits is 101154816, while the sum is 63.

The spelling of 47721468437802 in words is "forty-seven trillion, seven hundred twenty-one billion, four hundred sixty-eight million, four hundred thirty-seven thousand, eight hundred two".