21725776346104 has 32 divisors (see below), whose sum is σ = 40777462440000. Its totient is φ = 10851788833920.

The previous prime is 21725776346089. The next prime is 21725776346111. The reversal of 21725776346104 is 40164367752712.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72330022 + ... + 72629770.

It is an arithmetic number, because the mean of its divisors is an integer number (1274295701250).

Almost surely, 2^{21725776346104} is an apocalyptic number.

It is an amenable number.

21725776346104 is a deficient number, since it is larger than the sum of its proper divisors (19051686093896).

21725776346104 is a wasteful number, since it uses less digits than its factorization.

21725776346104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308983 (or 308979 counting only the distinct ones).

The product of its (nonzero) digits is 11854080, while the sum is 55.

The spelling of 21725776346104 in words is "twenty-one trillion, seven hundred twenty-five billion, seven hundred seventy-six million, three hundred forty-six thousand, one hundred four".