309097636444 has 24 divisors (see below), whose sum is σ = 542844708560. Its totient is φ = 153999449856.

The previous prime is 309097636403. The next prime is 309097636459. The reversal of 309097636444 is 444636790903.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4283092 + ... + 4354660.

Almost surely, 2^309097636444 is an apocalyptic number.

It is an amenable number.

309097636444 is a deficient number, since it is larger than the sum of its proper divisors (233747072116).

309097636444 is a wasteful number, since it uses less digits than its factorization.

309097636444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75397 (or 75395 counting only the distinct ones).

The product of its (nonzero) digits is 11757312, while the sum is 55.

The spelling of 309097636444 in words is "three hundred nine billion, ninety-seven million, six hundred thirty-six thousand, four hundred forty-four".