23002747621517 has 4 divisors (see below), whose sum is σ = 23013030479196. Its totient is φ = 22992464763840.

The previous prime is 23002747621499. The next prime is 23002747621583. The reversal of 23002747621517 is 71512674720032.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 21171648802756 + 1831098818761 = 4601266^2 + 1353181^2 .

It is a cyclic number.

It is not a de Polignac number, because 23002747621517 - 2⁶ = 23002747621453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23002747621817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5141425484 + ... + 5141429957.

It is an arithmetic number, because the mean of its divisors is an integer number (5753257619799).

Almost surely, 2^{23002747621517} is an apocalyptic number.

It is an amenable number.

23002747621517 is a deficient number, since it is larger than the sum of its proper divisors (10282857679).

23002747621517 is a wasteful number, since it uses less digits than its factorization.

23002747621517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10282857678.

The product of its (nonzero) digits is 987840, while the sum is 47.

The spelling of 23002747621517 in words is "twenty-three trillion, two billion, seven hundred forty-seven million, six hundred twenty-one thousand, five hundred seventeen".