431320650634 has 8 divisors (see below), whose sum is σ = 664466948388. Its totient is φ = 209831667840.

The previous prime is 431320650581. The next prime is 431320650653. The reversal of 431320650634 is 436056023134.

It can be written as a sum of positive squares in 2 ways, for example, as 341318850625 + 90001800009 = 584225^2 + 300003^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a junction number, because it is equal to n+sod(n) for n = 431320650593 and 431320650602.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2914328647 + ... + 2914328794.

Almost surely, 2^431320650634 is an apocalyptic number.

431320650634 is a deficient number, since it is larger than the sum of its proper divisors (233146297754).

431320650634 is a wasteful number, since it uses less digits than its factorization.

431320650634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5828657480.

The product of its (nonzero) digits is 155520, while the sum is 37.

Adding to 431320650634 its reverse (436056023134), we get a palindrome (867376673768).

The spelling of 431320650634 in words is "four hundred thirty-one billion, three hundred twenty million, six hundred fifty thousand, six hundred thirty-four".