309497808484 has 12 divisors (see below), whose sum is σ = 544427493484. Its totient is φ = 153947096064.

The previous prime is 309497808461. The next prime is 309497808491. The reversal of 309497808484 is 484808794903.

It can be written as a sum of positive squares in 2 ways, for example, as 73836105984 + 235661702500 = 271728^2 + 485450^2 .

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, 200451177 + ... + 200452720.

Almost surely, 2^309497808484 is an apocalyptic number.

It is an amenable number.

309497808484 is a deficient number, since it is larger than the sum of its proper divisors (234929685000).

309497808484 is a wasteful number, since it uses less digits than its factorization.

309497808484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400904094 (or 400904092 counting only the distinct ones).

The product of its (nonzero) digits is 55738368, while the sum is 64.

The spelling of 309497808484 in words is "three hundred nine billion, four hundred ninety-seven million, eight hundred eight thousand, four hundred eighty-four".