309937080684 has 192 divisors, whose sum is σ = 921726812160. Its totient is φ = 78712638720.

The previous prime is 309937080647. The next prime is 309937080697. The reversal of 309937080684 is 486080739903.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 53370109 + ... + 53375915.

It is an arithmetic number, because the mean of its divisors is an integer number (4800660480).

Almost surely, 2^309937080684 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 309937080684, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (460863406080).

309937080684 is an abundant number, since it is smaller than the sum of its proper divisors (611789731476).

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

309937080684 is a wasteful number, since it uses less digits than its factorization.

309937080684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7108 (or 7106 counting only the distinct ones).

The product of its (nonzero) digits is 7838208, while the sum is 57.

The spelling of 309937080684 in words is "three hundred nine billion, nine hundred thirty-seven million, eighty thousand, six hundred eighty-four".