21693093895011 has 24 divisors (see below), whose sum is σ = 36705197836224. Its totient is φ = 11269139684880.

The previous prime is 21693093895009. The next prime is 21693093895013. The reversal of 21693093895011 is 11059839039612.

It is an interprime number because it is at equal distance from previous prime (21693093895009) and next prime (21693093895013).

It is not a de Polignac number, because 21693093895011 - 2¹ = 21693093895009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21693093895013) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6707819625 + ... + 6707822858.

It is an arithmetic number, because the mean of its divisors is an integer number (1529383243176).

Almost surely, 2^{21693093895011} is an apocalyptic number.

21693093895011 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

21693093895011 is a deficient number, since it is larger than the sum of its proper divisors (15012103941213).

21693093895011 is a wasteful number, since it uses less digits than its factorization.

21693093895011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13415642511 (or 13415642504 counting only the distinct ones).

The product of its (nonzero) digits is 3149280, while the sum is 57.

The spelling of 21693093895011 in words is "twenty-one trillion, six hundred ninety-three billion, ninety-three million, eight hundred ninety-five thousand, eleven".