21363819262 has 16 divisors (see below), whose sum is σ = 32735045952. Its totient is φ = 10452241440.

The previous prime is 21363819227. The next prime is 21363819313. The reversal of 21363819262 is 26291836312.

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, 428812 + ... + 476032.

It is an arithmetic number, because the mean of its divisors is an integer number (2045940372).

Almost surely, 2^21363819262 is an apocalyptic number.

21363819262 is a deficient number, since it is larger than the sum of its proper divisors (11371226690).

21363819262 is a wasteful number, since it uses less digits than its factorization.

21363819262 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52083.

The product of its digits is 186624, while the sum is 43.

The spelling of 21363819262 in words is "twenty-one billion, three hundred sixty-three million, eight hundred nineteen thousand, two hundred sixty-two".