21926696814 has 32 divisors (see below), whose sum is σ = 53155630080. Its totient is φ = 6644453400.

The previous prime is 21926696801. The next prime is 21926696839. The reversal of 21926696814 is 41869662912.

21926696814 is a `hidden beast` number, since 219 + 266 + 96 + 81 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18456222 + ... + 18457409.

It is an arithmetic number, because the mean of its divisors is an integer number (1661113440).

Almost surely, 2^21926696814 is an apocalyptic number.

21926696814 is an abundant number, since it is smaller than the sum of its proper divisors (31228933266).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21926696814 is a wasteful number, since it uses less digits than its factorization.

21926696814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36913653 (or 36913647 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 54.

The spelling of 21926696814 in words is "twenty-one billion, nine hundred twenty-six million, six hundred ninety-six thousand, eight hundred fourteen".