307685639040 has 512 divisors, whose sum is σ = 1112633625600. Its totient is φ = 71753662464.

The previous prime is 307685639039. The next prime is 307685639059. The reversal of 307685639040 is 40936586703.

It is a congruent 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, 61424056 + ... + 61429064.

It is an arithmetic number, because the mean of its divisors is an integer number (2173112550).

Almost surely, 2^307685639040 is an apocalyptic number.

307685639040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 307685639040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (556316812800).

307685639040 is an abundant number, since it is smaller than the sum of its proper divisors (804947986560).

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

307685639040 is a wasteful number, since it uses less digits than its factorization.

307685639040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5174 (or 5162 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 51.

The spelling of 307685639040 in words is "three hundred seven billion, six hundred eighty-five million, six hundred thirty-nine thousand, forty".