431487247967 has 4 divisors (see below), whose sum is σ = 450247563120. Its totient is φ = 412726932816.

The previous prime is 431487247943. The next prime is 431487247969. The reversal of 431487247967 is 769742784134.

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

It is a cyclic number.

It is not a de Polignac number, because 431487247967 - 2¹² = 431487243871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431487247969) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9380157542 + ... + 9380157587.

It is an arithmetic number, because the mean of its divisors is an integer number (112561890780).

Almost surely, 2^431487247967 is an apocalyptic number.

431487247967 is a deficient number, since it is larger than the sum of its proper divisors (18760315153).

431487247967 is a wasteful number, since it uses less digits than its factorization.

431487247967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18760315152.

The product of its digits is 56899584, while the sum is 62.

The spelling of 431487247967 in words is "four hundred thirty-one billion, four hundred eighty-seven million, two hundred forty-seven thousand, nine hundred sixty-seven".