21302328077046 has 24 divisors (see below), whose sum is σ = 46161637075944. Its totient is φ = 7099761732000.

The previous prime is 21302328077039. The next prime is 21302328077047. The reversal of 21302328077046 is 64077082320312.

21302328077046 is a `hidden beast` number, since 21 + 302 + 3 + 280 + 7 + 7 + 0 + 46 = 666.

It is a super-2 number, since 2×21302328077046² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21302328076992 and 21302328077010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21302328077047) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 84394956 + ... + 84646991.

It is an arithmetic number, because the mean of its divisors is an integer number (1923401544831).

Almost surely, 2^{21302328077046} is an apocalyptic number.

21302328077046 is an abundant number, since it is smaller than the sum of its proper divisors (24859308998898).

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

21302328077046 is a wasteful number, since it uses less digits than its factorization.

21302328077046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169048956 (or 169048953 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 45.

The spelling of 21302328077046 in words is "twenty-one trillion, three hundred two billion, three hundred twenty-eight million, seventy-seven thousand, forty-six".