431078364438 has 16 divisors (see below), whose sum is σ = 878423837616. Its totient is φ = 140981603360.

The previous prime is 431078364377. The next prime is 431078364443. The reversal of 431078364438 is 834463870134.

It is a super-2 number, since 2×431078364438² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 677795853 + ... + 677796488.

It is an arithmetic number, because the mean of its divisors is an integer number (54901489851).

Almost surely, 2^431078364438 is an apocalyptic number.

431078364438 is an abundant number, since it is smaller than the sum of its proper divisors (447345473178).

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

431078364438 is a wasteful number, since it uses less digits than its factorization.

431078364438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1355592399.

The product of its (nonzero) digits is 4644864, while the sum is 51.

The spelling of 431078364438 in words is "four hundred thirty-one billion, seventy-eight million, three hundred sixty-four thousand, four hundred thirty-eight".