915914077156 has 27 divisors (see below), whose sum is σ = 1735677231771. Its totient is φ = 422718089664.

The previous prime is 915914077097. The next prime is 915914077157. The reversal of 915914077156 is 651770419519.

It is a happy number.

The square root of 915914077156 is 957034.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 228646548900 + 687267528256 = 478170^2 + 829016^2 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 915914077097 and 915914077106.

It is not an unprimeable number, because it can be changed into a prime (915914077157) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 24864480 + ... + 24901288.

Almost surely, 2^915914077156 is an apocalyptic number.

915914077156 is the 957034-th square number.

It is an amenable number.

915914077156 is a deficient number, since it is larger than the sum of its proper divisors (819763154615).

915914077156 is an frugal number, since it uses more digits than its factorization.

915914077156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73648 (or 36824 counting only the distinct ones).

The product of its (nonzero) digits is 2381400, while the sum is 55.

The spelling of 915914077156 in words is "nine hundred fifteen billion, nine hundred fourteen million, seventy-seven thousand, one hundred fifty-six".