431986764667 has 2 divisors, whose sum is σ = 431986764668. Its totient is φ = 431986764666.

The previous prime is 431986764641. The next prime is 431986764679. The reversal of 431986764667 is 766467689134.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 431986764667 - 2¹⁵ = 431986731899 is a prime.

It is a super-2 number, since 2×431986764667² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (431986764067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215993382333 + 215993382334.

It is an arithmetic number, because the mean of its divisors is an integer number (215993382334).

Almost surely, 2^431986764667 is an apocalyptic number.

431986764667 is a deficient number, since it is larger than the sum of its proper divisors (1).

431986764667 is an equidigital number, since it uses as much as digits as its factorization.

431986764667 is an evil number, because the sum of its binary digits is even.

The product of its digits is 219469824, while the sum is 67.

The spelling of 431986764667 in words is "four hundred thirty-one billion, nine hundred eighty-six million, seven hundred sixty-four thousand, six hundred sixty-seven".