509150390651 has 12 divisors (see below), whose sum is σ = 606722767560. Its totient is φ = 425770359840.

The previous prime is 509150390641. The next prime is 509150390659. The reversal of 509150390651 is 156093051905.

It is not a de Polignac number, because 509150390651 - 2²⁶ = 509083281787 is a prime.

It is not an unprimeable number, because it can be changed into a prime (509150390659) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 126715361 + ... + 126719378.

It is an arithmetic number, because the mean of its divisors is an integer number (50560230630).

Almost surely, 2^509150390651 is an apocalyptic number.

509150390651 is a deficient number, since it is larger than the sum of its proper divisors (97572376909).

509150390651 is a wasteful number, since it uses less digits than its factorization.

509150390651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253434794 (or 253434787 counting only the distinct ones).

The product of its (nonzero) digits is 182250, while the sum is 44.

The spelling of 509150390651 in words is "five hundred nine billion, one hundred fifty million, three hundred ninety thousand, six hundred fifty-one".