21112737364 has 24 divisors (see below), whose sum is σ = 38417557248. Its totient is φ = 10141264320.

The previous prime is 21112737341. The next prime is 21112737379. The reversal of 21112737364 is 46373721112.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

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, 604414 + ... + 638389.

It is an arithmetic number, because the mean of its divisors is an integer number (1600731552).

Almost surely, 2^21112737364 is an apocalyptic number.

It is an amenable number.

21112737364 is a deficient number, since it is larger than the sum of its proper divisors (17304819884).

21112737364 is a wasteful number, since it uses less digits than its factorization.

21112737364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1242975 (or 1242973 counting only the distinct ones).

The product of its digits is 42336, while the sum is 37.

The spelling of 21112737364 in words is "twenty-one billion, one hundred twelve million, seven hundred thirty-seven thousand, three hundred sixty-four".