123477855807 has 32 divisors (see below), whose sum is σ = 167761152000. Its totient is φ = 80770989312.

The previous prime is 123477855773. The next prime is 123477855817. The reversal of 123477855807 is 708558774321.

It is not a de Polignac number, because 123477855807 - 2³⁴ = 106297986623 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123477855817) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33075513 + ... + 33079245.

It is an arithmetic number, because the mean of its divisors is an integer number (5242536000).

Almost surely, 2^123477855807 is an apocalyptic number.

123477855807 is a deficient number, since it is larger than the sum of its proper divisors (44283296193).

123477855807 is a wasteful number, since it uses less digits than its factorization.

123477855807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4647.

The product of its (nonzero) digits is 13171200, while the sum is 57.

The spelling of 123477855807 in words is "one hundred twenty-three billion, four hundred seventy-seven million, eight hundred fifty-five thousand, eight hundred seven".