431868194955 has 24 divisors (see below), whose sum is σ = 748587205392. Its totient is φ = 230324883264.

The previous prime is 431868194941. The next prime is 431868194959. The reversal of 431868194955 is 559491868134.

431868194955 is a `hidden beast` number, since 431 + 8 + 6 + 8 + 194 + 9 + 5 + 5 = 666.

It is not a de Polignac number, because 431868194955 - 2⁸ = 431868194699 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 431868194892 and 431868194901.

It is not an unprimeable number, because it can be changed into a prime (431868194959) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3462537 + ... + 3585093.

It is an arithmetic number, because the mean of its divisors is an integer number (31191133558).

Almost surely, 2^431868194955 is an apocalyptic number.

431868194955 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

431868194955 is a deficient number, since it is larger than the sum of its proper divisors (316719010437).

431868194955 is a wasteful number, since it uses less digits than its factorization.

431868194955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200875 (or 200872 counting only the distinct ones).

The product of its digits is 37324800, while the sum is 63.

The spelling of 431868194955 in words is "four hundred thirty-one billion, eight hundred sixty-eight million, one hundred ninety-four thousand, nine hundred fifty-five".