1915693056 has 216 divisors, whose sum is σ = 5791648590. Its totient is φ = 609583104.

The previous prime is 1915693051. The next prime is 1915693097. The reversal of 1915693056 is 6503965191.

1915693056 is a `hidden beast` number, since 1 + 9 + 1 + 569 + 30 + 56 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 1907942400 + 7750656 = 43680^2 + 2784^2 .

It is not an unprimeable number, because it can be changed into a prime (1915693051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 36145126 + ... + 36145178.

Almost surely, 2^1915693056 is an apocalyptic number.

1915693056 is a gapful number since it is divisible by the number (16) 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 1915693056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2895824295).

1915693056 is an abundant number, since it is smaller than the sum of its proper divisors (3875955534).

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

1915693056 is an equidigital number, since it uses as much as digits as its factorization.

1915693056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171 (or 95 counting only the distinct ones).

The product of its (nonzero) digits is 218700, while the sum is 45.

The square root of 1915693056 is about 43768.6309587129. The cubic root of 1915693056 is about 1241.9629540787.

The spelling of 1915693056 in words is "one billion, nine hundred fifteen million, six hundred ninety-three thousand, fifty-six".