431478904327 has 2 divisors, whose sum is σ = 431478904328. Its totient is φ = 431478904326.

The previous prime is 431478904313. The next prime is 431478904331. The reversal of 431478904327 is 723409874134.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-431478904327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (431478904127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215739452163 + 215739452164.

It is an arithmetic number, because the mean of its divisors is an integer number (215739452164).

Almost surely, 2^431478904327 is an apocalyptic number.

431478904327 is a deficient number, since it is larger than the sum of its proper divisors (1).

431478904327 is an equidigital number, since it uses as much as digits as its factorization.

431478904327 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4064256, while the sum is 52.

The spelling of 431478904327 in words is "four hundred thirty-one billion, four hundred seventy-eight million, nine hundred four thousand, three hundred twenty-seven".