309706369974 has 24 divisors (see below), whose sum is σ = 671631255360. Its totient is φ = 103143027888.

The previous prime is 309706369967. The next prime is 309706369991. The reversal of 309706369974 is 479963607903.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7681734 + ... + 7721945.

It is an arithmetic number, because the mean of its divisors is an integer number (27984635640).

Almost surely, 2^309706369974 is an apocalyptic number.

309706369974 is an abundant number, since it is smaller than the sum of its proper divisors (361924885386).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

309706369974 is a wasteful number, since it uses less digits than its factorization.

309706369974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15404804 (or 15404801 counting only the distinct ones).

The product of its (nonzero) digits is 46294416, while the sum is 63.

The spelling of 309706369974 in words is "three hundred nine billion, seven hundred six million, three hundred sixty-nine thousand, nine hundred seventy-four".