21114793017 has 40 divisors (see below), whose sum is σ = 32933729664. Its totient is φ = 13456124352.

The previous prime is 21114792989. The next prime is 21114793039. The reversal of 21114793017 is 71039741112.

It is not a de Polignac number, because 21114793017 - 2¹² = 21114788921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21114793087) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 4604908 + ... + 4609490.

Almost surely, 2^21114793017 is an apocalyptic number.

21114793017 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

21114793017 is a deficient number, since it is larger than the sum of its proper divisors (11818936647).

21114793017 is a wasteful number, since it uses less digits than its factorization.

21114793017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7091 (or 7082 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 36.

The spelling of 21114793017 in words is "twenty-one billion, one hundred fourteen million, seven hundred ninety-three thousand, seventeen".