23478155502 has 16 divisors (see below), whose sum is σ = 46961448960. Its totient is φ = 7825195512.

The previous prime is 23478155497. The next prime is 23478155521. The reversal of 23478155502 is 20555187432.

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, 153352 + ... + 265467.

It is an arithmetic number, because the mean of its divisors is an integer number (2935090560).

Almost surely, 2^23478155502 is an apocalyptic number.

23478155502 is an abundant number, since it is smaller than the sum of its proper divisors (23483293458).

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

23478155502 is a wasteful number, since it uses less digits than its factorization.

23478155502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428167.

The product of its (nonzero) digits is 336000, while the sum is 42.

The spelling of 23478155502 in words is "twenty-three billion, four hundred seventy-eight million, one hundred fifty-five thousand, five hundred two".