431331006398 has 4 divisors (see below), whose sum is σ = 646996509600. Its totient is φ = 215665503198.

The previous prime is 431331006383. The next prime is 431331006419. The reversal of 431331006398 is 893600133134.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107832751598 + ... + 107832751601.

It is an arithmetic number, because the mean of its divisors is an integer number (161749127400).

Almost surely, 2^431331006398 is an apocalyptic number.

431331006398 is a deficient number, since it is larger than the sum of its proper divisors (215665503202).

431331006398 is a wasteful number, since it uses less digits than its factorization.

431331006398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215665503201.

The product of its (nonzero) digits is 139968, while the sum is 41.

The spelling of 431331006398 in words is "four hundred thirty-one billion, three hundred thirty-one million, six thousand, three hundred ninety-eight".