23132551817 has 8 divisors (see below), whose sum is σ = 23279864160. Its totient is φ = 22985595360.

The previous prime is 23132551787. The next prime is 23132551847. The reversal of 23132551817 is 71815523132.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (23132551787) and next prime (23132551847).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23132551817 - 2²⁸ = 22864116361 is a prime.

It is a super-2 number, since 2×23132551817² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23132551847) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42053 + ... + 219165.

It is an arithmetic number, because the mean of its divisors is an integer number (2909983020).

Almost surely, 2^23132551817 is an apocalyptic number.

It is an amenable number.

23132551817 is a deficient number, since it is larger than the sum of its proper divisors (147312343).

23132551817 is a wasteful number, since it uses less digits than its factorization.

23132551817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177943.

The product of its digits is 50400, while the sum is 38.

The spelling of 23132551817 in words is "twenty-three billion, one hundred thirty-two million, five hundred fifty-one thousand, eight hundred seventeen".