123455677904 has 40 divisors (see below), whose sum is σ = 259623383040. Its totient is φ = 56530873728.

The previous prime is 123455677901. The next prime is 123455677937. The reversal of 123455677904 is 409776554321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123455677901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2310344 + ... + 2363175.

It is an arithmetic number, because the mean of its divisors is an integer number (6490584576).

Almost surely, 2^123455677904 is an apocalyptic number.

It is an amenable number.

123455677904 is an abundant number, since it is smaller than the sum of its proper divisors (136167705136).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123455677904 is a wasteful number, since it uses less digits than its factorization.

123455677904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4673667 (or 4673661 counting only the distinct ones).

The product of its (nonzero) digits is 6350400, while the sum is 53.

The spelling of 123455677904 in words is "one hundred twenty-three billion, four hundred fifty-five million, six hundred seventy-seven thousand, nine hundred four".