21477314216604 has 48 divisors (see below), whose sum is σ = 50584151116800. Its totient is φ = 7091907639936.

The previous prime is 21477314216599. The next prime is 21477314216641. The reversal of 21477314216604 is 40661241377412.

It is a super-2 number, since 2×21477314216604² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32334912 + ... + 32992440.

It is an arithmetic number, because the mean of its divisors is an integer number (1053836481600).

Almost surely, 2^{21477314216604} is an apocalyptic number.

It is an amenable number.

21477314216604 is an abundant number, since it is smaller than the sum of its proper divisors (29106836900196).

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

21477314216604 is a wasteful number, since it uses less digits than its factorization.

21477314216604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 683082 (or 683080 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 48.

The spelling of 21477314216604 in words is "twenty-one trillion, four hundred seventy-seven billion, three hundred fourteen million, two hundred sixteen thousand, six hundred four".