431880345128 has 32 divisors (see below), whose sum is σ = 857452602600. Its totient is φ = 203227594752.

The previous prime is 431880345119. The next prime is 431880345163. The reversal of 431880345128 is 821543088134.

It can be written as a sum of positive squares in 4 ways, for example, as 241000482724 + 190879862404 = 490918^2 + 436898^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3100238 + ... + 3236546.

Almost surely, 2^431880345128 is an apocalyptic number.

It is an amenable number.

431880345128 is a deficient number, since it is larger than the sum of its proper divisors (425572257472).

431880345128 is a wasteful number, since it uses less digits than its factorization.

431880345128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159629 (or 159625 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 47.

The spelling of 431880345128 in words is "four hundred thirty-one billion, eight hundred eighty million, three hundred forty-five thousand, one hundred twenty-eight".