15078728650000 has 60 divisors (see below), whose sum is σ = 36516458867364. Its totient is φ = 6031491440000.

The previous prime is 15078728649997. The next prime is 15078728650019. The reversal of 15078728650000 is 5682787051.

It can be written as a sum of positive squares in 6 ways, for example, as 12530580500736 + 2548148149264 = 3539856^2 + 1596292^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 150737287 + ... + 150837286.

Almost surely, 2^{15078728650000} is an apocalyptic number.

15078728650000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15078728650000 is an abundant number, since it is smaller than the sum of its proper divisors (21437730217364).

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

15078728650000 is an frugal number, since it uses more digits than its factorization.

15078728650000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301574606 (or 301574580 counting only the distinct ones).

The product of its (nonzero) digits is 940800, while the sum is 49.

The spelling of 15078728650000 in words is "fifteen trillion, seventy-eight billion, seven hundred twenty-eight million, six hundred fifty thousand".