123345555892 has 24 divisors (see below), whose sum is σ = 232532184416. Its totient is φ = 56910778848.

The previous prime is 123345555889. The next prime is 123345555919. The reversal of 123345555892 is 298555543321.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 206418 + ... + 537865.

Almost surely, 2^123345555892 is an apocalyptic number.

It is an amenable number.

123345555892 is a deficient number, since it is larger than the sum of its proper divisors (109186628524).

123345555892 is a wasteful number, since it uses less digits than its factorization.

123345555892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 747487 (or 747485 counting only the distinct ones).

The product of its digits is 6480000, while the sum is 52.

The spelling of 123345555892 in words is "one hundred twenty-three billion, three hundred forty-five million, five hundred fifty-five thousand, eight hundred ninety-two".