21583727323802 has 48 divisors (see below), whose sum is σ = 37927152284832. Its totient is φ = 9185000741280.

The previous prime is 21583727323793. The next prime is 21583727323877. The reversal of 21583727323802 is 20832372738512.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16841477 + ... + 18077687.

It is an arithmetic number, because the mean of its divisors is an integer number (790149005934).

Almost surely, 2^{21583727323802} is an apocalyptic number.

21583727323802 is a deficient number, since it is larger than the sum of its proper divisors (16343424961030).

21583727323802 is a wasteful number, since it uses less digits than its factorization.

21583727323802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1237483 (or 1237476 counting only the distinct ones).

The product of its (nonzero) digits is 6773760, while the sum is 53.

The spelling of 21583727323802 in words is "twenty-one trillion, five hundred eighty-three billion, seven hundred twenty-seven million, three hundred twenty-three thousand, eight hundred two".