123422688687 has 8 divisors (see below), whose sum is σ = 166412614320. Its totient is φ = 81357277760.

The previous prime is 123422688671. The next prime is 123422688731. The reversal of 123422688687 is 786886224321.

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 123422688687 - 2⁴ = 123422688671 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123422688637) 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, 231128364 + ... + 231128897.

It is an arithmetic number, because the mean of its divisors is an integer number (20801576790).

Almost surely, 2^123422688687 is an apocalyptic number.

123422688687 is a deficient number, since it is larger than the sum of its proper divisors (42989925633).

123422688687 is an equidigital number, since it uses as much as digits as its factorization.

123422688687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462257353.

The product of its digits is 12386304, while the sum is 57.

The spelling of 123422688687 in words is "one hundred twenty-three billion, four hundred twenty-two million, six hundred eighty-eight thousand, six hundred eighty-seven".