8525377664 has 32 divisors (see below), whose sum is σ = 16990894800. Its totient is φ = 4260996352.

The previous prime is 8525377661. The next prime is 8525377669. The reversal of 8525377664 is 4667735258.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

Its product of digits (8467200) is a multiple of the sum of its prime factors (26460).

It is not an unprimeable number, because it can be changed into a prime (8525377661) 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, 349019 + ... + 372645.

Almost surely, 2^8525377664 is an apocalyptic number.

It is an amenable number.

8525377664 is a deficient number, since it is larger than the sum of its proper divisors (8465517136).

8525377664 is a wasteful number, since it uses less digits than its factorization.

8525377664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26460 (or 26448 counting only the distinct ones).

The product of its digits is 8467200, while the sum is 53.

The square root of 8525377664 is about 92332.9717056697. The cubic root of 8525377664 is about 2042.8565697126.

The spelling of 8525377664 in words is "eight billion, five hundred twenty-five million, three hundred seventy-seven thousand, six hundred sixty-four".