1915664264 has 16 divisors (see below), whose sum is σ = 3592911120. Its totient is φ = 957554640.

The previous prime is 1915664263. The next prime is 1915664291. The reversal of 1915664264 is 4624665191.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (1915664263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3722 + ... + 62009.

It is an arithmetic number, because the mean of its divisors is an integer number (224556945).

Almost surely, 2^1915664264 is an apocalyptic number.

It is an amenable number.

1915664264 is a deficient number, since it is larger than the sum of its proper divisors (1677246856).

1915664264 is a wasteful number, since it uses less digits than its factorization.

1915664264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69380 (or 69376 counting only the distinct ones).

The product of its digits is 311040, while the sum is 44.

The square root of 1915664264 is about 43768.3020461155. The cubic root of 1915664264 is about 1241.9567320004.

The spelling of 1915664264 in words is "one billion, nine hundred fifteen million, six hundred sixty-four thousand, two hundred sixty-four".