12689472023 has 4 divisors (see below), whose sum is σ = 12904547880. Its totient is φ = 12474396168.

The previous prime is 12689472007. The next prime is 12689472041. The reversal of 12689472023 is 32027498621.

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 12689472023 - 2⁴ = 12689472007 is a prime.

It is a super-2 number, since 2×12689472023² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12689472073) 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, 107537840 + ... + 107537957.

It is an arithmetic number, because the mean of its divisors is an integer number (3226136970).

Almost surely, 2^12689472023 is an apocalyptic number.

12689472023 is a deficient number, since it is larger than the sum of its proper divisors (215075857).

12689472023 is an equidigital number, since it uses as much as digits as its factorization.

12689472023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215075856.

The product of its (nonzero) digits is 290304, while the sum is 44.

The spelling of 12689472023 in words is "twelve billion, six hundred eighty-nine million, four hundred seventy-two thousand, twenty-three".