307697461320 has 128 divisors (see below), whose sum is σ = 927233994240. Its totient is φ = 81685048320.

The previous prime is 307697461283. The next prime is 307697461361. The reversal of 307697461320 is 23164796703.

It is a super-2 number, since 2×307697461320² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 307697461320.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45901089 + ... + 45907791.

It is an arithmetic number, because the mean of its divisors is an integer number (7244015580).

Almost surely, 2^307697461320 is an apocalyptic number.

307697461320 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 307697461320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (463616997120).

307697461320 is an abundant number, since it is smaller than the sum of its proper divisors (619536532920).

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

307697461320 is a wasteful number, since it uses less digits than its factorization.

307697461320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8375 (or 8371 counting only the distinct ones).

The product of its (nonzero) digits is 1143072, while the sum is 48.

The spelling of 307697461320 in words is "three hundred seven billion, six hundred ninety-seven million, four hundred sixty-one thousand, three hundred twenty".