21093961214337 has 32 divisors (see below), whose sum is σ = 30712125006720. Its totient is φ = 12771724945920.

The previous prime is 21093961214323. The next prime is 21093961214371. The reversal of 21093961214337 is 73341216939012.

It is a happy number.

It is not a de Polignac number, because 21093961214337 - 2³⁴ = 21076781345153 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 21093961214337.

It is not an unprimeable number, because it can be changed into a prime (21093961214387) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 148251253 + ... + 148393469.

It is an arithmetic number, because the mean of its divisors is an integer number (959753906460).

Almost surely, 2^{21093961214337} is an apocalyptic number.

It is an amenable number.

21093961214337 is a deficient number, since it is larger than the sum of its proper divisors (9618163792383).

21093961214337 is a wasteful number, since it uses less digits than its factorization.

21093961214337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146593.

The product of its (nonzero) digits is 1469664, while the sum is 51.

The spelling of 21093961214337 in words is "twenty-one trillion, ninety-three billion, nine hundred sixty-one million, two hundred fourteen thousand, three hundred thirty-seven".