21364767361232 has 20 divisors (see below), whose sum is σ = 41404020452256. Its totient is φ = 10679858857440.

The previous prime is 21364767361213. The next prime is 21364767361247. The reversal of 21364767361232 is 23216376746312.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 157731638 + ... + 157867029.

Almost surely, 2^{21364767361232} is an apocalyptic number.

It is an amenable number.

21364767361232 is a deficient number, since it is larger than the sum of its proper divisors (20039253091024).

21364767361232 is a wasteful number, since it uses less digits than its factorization.

21364767361232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315602906 (or 315602900 counting only the distinct ones).

The product of its digits is 9144576, while the sum is 53.

The spelling of 21364767361232 in words is "twenty-one trillion, three hundred sixty-four billion, seven hundred sixty-seven million, three hundred sixty-one thousand, two hundred thirty-two".