5195391264 has 72 divisors (see below), whose sum is σ = 16885028160. Its totient is φ = 1484396928.

The previous prime is 5195391263. The next prime is 5195391269. The reversal of 5195391264 is 4621935915.

5195391264 is a `hidden beast` number, since 51 + 9 + 539 + 1 + 2 + 64 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is not an unprimeable number, because it can be changed into a prime (5195391263) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1286524 + ... + 1290555.

It is an arithmetic number, because the mean of its divisors is an integer number (234514280).

Almost surely, 2^5195391264 is an apocalyptic number.

It is an amenable number.

5195391264 is an abundant number, since it is smaller than the sum of its proper divisors (11689636896).

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

5195391264 is a wasteful number, since it uses less digits than its factorization.

5195391264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2577102 (or 2577091 counting only the distinct ones).

The product of its digits is 291600, while the sum is 45.

The square root of 5195391264 is about 72079.0625910188. The cubic root of 5195391264 is about 1731.9662302493.

The spelling of 5195391264 in words is "five billion, one hundred ninety-five million, three hundred ninety-one thousand, two hundred sixty-four".