432123321278 has 24 divisors (see below), whose sum is σ = 737035656840. Its totient is φ = 189646595600.

The previous prime is 432123321277. The next prime is 432123321353. The reversal of 432123321278 is 872123321234.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (432123321277) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30779768 + ... + 30793803.

It is an arithmetic number, because the mean of its divisors is an integer number (30709819035).

Almost surely, 2^432123321278 is an apocalyptic number.

432123321278 is a deficient number, since it is larger than the sum of its proper divisors (304912335562).

432123321278 is a wasteful number, since it uses less digits than its factorization.

432123321278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61573624 (or 61573613 counting only the distinct ones).

The product of its digits is 96768, while the sum is 38.

The spelling of 432123321278 in words is "four hundred thirty-two billion, one hundred twenty-three million, three hundred twenty-one thousand, two hundred seventy-eight".