3725377664 has 32 divisors (see below), whose sum is σ = 7505063100. Its totient is φ = 1841754112.

The previous prime is 3725377661. The next prime is 3725377673. The reversal of 3725377664 is 4667735273.

It can be written as a sum of positive squares in 2 ways, for example, as 3599040064 + 126337600 = 59992^2 + 11240^2 .

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

It is not an unprimeable number, because it can be changed into a prime (3725377661) 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 3 ways as a sum of consecutive naturals, for example, 152117 + ... + 174900.

Almost surely, 2^3725377664 is an apocalyptic number.

It is an amenable number.

3725377664 is an abundant number, since it is smaller than the sum of its proper divisors (3779685436).

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

3725377664 is an equidigital number, since it uses as much as digits as its factorization.

3725377664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327120 (or 327108 counting only the distinct ones).

The product of its digits is 4445280, while the sum is 50.

The square root of 3725377664 is about 61035.8719442919. The cubic root of 3725377664 is about 1550.2084581236.

The spelling of 3725377664 in words is "three billion, seven hundred twenty-five million, three hundred seventy-seven thousand, six hundred sixty-four".