21793106061 has 12 divisors (see below), whose sum is σ = 32012472960. Its totient is φ = 14282487240.

The previous prime is 21793106053. The next prime is 21793106063. The reversal of 21793106061 is 16060139712.

21793106061 is a `hidden beast` number, since 2 + 17 + 9 + 31 + 0 + 606 + 1 = 666.

It is not a de Polignac number, because 21793106061 - 2³ = 21793106053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21793106063) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20520285 + ... + 20521346.

It is an arithmetic number, because the mean of its divisors is an integer number (2667706080).

Almost surely, 2^21793106061 is an apocalyptic number.

It is an amenable number.

21793106061 is a deficient number, since it is larger than the sum of its proper divisors (10219366899).

21793106061 is a wasteful number, since it uses less digits than its factorization.

21793106061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41041696 (or 41041693 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The spelling of 21793106061 in words is "twenty-one billion, seven hundred ninety-three million, one hundred six thousand, sixty-one".