21692627926634 has 32 divisors (see below), whose sum is σ = 37200612666240. Its totient is φ = 9293528457792.

The previous prime is 21692627926631. The next prime is 21692627926639. The reversal of 21692627926634 is 43662972629612.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (21692627926631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 800186672 + ... + 800213780.

It is an arithmetic number, because the mean of its divisors is an integer number (1162519145820).

Almost surely, 2^{21692627926634} is an apocalyptic number.

21692627926634 is a deficient number, since it is larger than the sum of its proper divisors (15507984739606).

21692627926634 is a wasteful number, since it uses less digits than its factorization.

21692627926634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45374.

The product of its digits is 141087744, while the sum is 65.

The spelling of 21692627926634 in words is "twenty-one trillion, six hundred ninety-two billion, six hundred twenty-seven million, nine hundred twenty-six thousand, six hundred thirty-four".