915680863470 has 96 divisors (see below), whose sum is σ = 2300938352640. Its totient is φ = 232975310400.

The previous prime is 915680863457. The next prime is 915680863523. The reversal of 915680863470 is 74368086519.

It is a self number, because there is not a number n which added to its sum of digits gives 915680863470.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4590471 + ... + 4785789.

It is an arithmetic number, because the mean of its divisors is an integer number (23968107840).

Almost surely, 2^915680863470 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 915680863470, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1150469176320).

915680863470 is an abundant number, since it is smaller than the sum of its proper divisors (1385257489170).

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

915680863470 is a wasteful number, since it uses less digits than its factorization.

915680863470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195502 (or 195431 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 57.

The spelling of 915680863470 in words is "nine hundred fifteen billion, six hundred eighty million, eight hundred sixty-three thousand, four hundred seventy".