23320872876487 has 4 divisors (see below), whose sum is σ = 23335330951800. Its totient is φ = 23306414801176.

The previous prime is 23320872876403. The next prime is 23320872876523. The reversal of 23320872876487 is 78467827802332.

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

It is a cyclic number.

It is not a de Polignac number, because 23320872876487 - 2¹⁹ = 23320872352199 is a prime.

It is a super-2 number, since 2×23320872876487² (a number of 28 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (67) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23320872826487) 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, 7229035237 + ... + 7229038462.

It is an arithmetic number, because the mean of its divisors is an integer number (5833832737950).

Almost surely, 2^{23320872876487} is an apocalyptic number.

23320872876487 is a deficient number, since it is larger than the sum of its proper divisors (14458075313).

23320872876487 is a wasteful number, since it uses less digits than its factorization.

23320872876487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14458075312.

The product of its (nonzero) digits is 303464448, while the sum is 67.

The spelling of 23320872876487 in words is "twenty-three trillion, three hundred twenty billion, eight hundred seventy-two million, eight hundred seventy-six thousand, four hundred eighty-seven".