21794418051012 has 96 divisors (see below), whose sum is σ = 59831782496640. Its totient is φ = 6837010974720.

The previous prime is 21794418050987. The next prime is 21794418051023. The reversal of 21794418051012 is 21015081449712.

It is a happy number.

21794418051012 is a `hidden beast` number, since 2 + 1 + 7 + 9 + 4 + 41 + 80 + 510 + 12 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27846187 + ... + 28618157.

It is an arithmetic number, because the mean of its divisors is an integer number (623247734340).

Almost surely, 2^{21794418051012} is an apocalyptic number.

It is an amenable number.

21794418051012 is an abundant number, since it is smaller than the sum of its proper divisors (38037364445628).

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

21794418051012 is a wasteful number, since it uses less digits than its factorization.

21794418051012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 787378 (or 787370 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 45.

The spelling of 21794418051012 in words is "twenty-one trillion, seven hundred ninety-four billion, four hundred eighteen million, fifty-one thousand, twelve".