32002620021 has 16 divisors (see below), whose sum is σ = 47489420800. Its totient is φ = 21299920704.

The previous prime is 32002619989. The next prime is 32002620059. The reversal of 32002620021 is 12002620023.

32002620021 is a `hidden beast` number, since 3 + 20 + 0 + 2 + 620 + 0 + 21 = 666.

It is not a de Polignac number, because 32002620021 - 2⁵ = 32002619989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 32002619976 and 32002620003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32002620421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 959956 + ... + 992733.

It is an arithmetic number, because the mean of its divisors is an integer number (2968088800).

Almost surely, 2^32002620021 is an apocalyptic number.

It is an amenable number.

32002620021 is a deficient number, since it is larger than the sum of its proper divisors (15486800779).

32002620021 is a wasteful number, since it uses less digits than its factorization.

32002620021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1953305 (or 1953299 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The spelling of 32002620021 in words is "thirty-two billion, two million, six hundred twenty thousand, twenty-one".