431987421308 has 24 divisors (see below), whose sum is σ = 789156496800. Its totient is φ = 206521515200.

The previous prime is 431987421287. The next prime is 431987421323. The reversal of 431987421308 is 803124789134.

It is a super-2 number, since 2×431987421308² (a number of 24 digits) contains 22 as substring.

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, 686543 + ... + 1155558.

It is an arithmetic number, because the mean of its divisors is an integer number (32881520700).

Almost surely, 2^431987421308 is an apocalyptic number.

It is an amenable number.

431987421308 is a deficient number, since it is larger than the sum of its proper divisors (357169075492).

431987421308 is a wasteful number, since it uses less digits than its factorization.

431987421308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1844677 (or 1844675 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 50.

The spelling of 431987421308 in words is "four hundred thirty-one billion, nine hundred eighty-seven million, four hundred twenty-one thousand, three hundred eight".