3937521466 has 8 divisors (see below), whose sum is σ = 5913964980. Its totient is φ = 1966199808.

The previous prime is 3937521443. The next prime is 3937521503. The reversal of 3937521466 is 6641257393.

It can be written as a sum of positive squares in 2 ways, for example, as 3694816225 + 242705241 = 60785^2 + 15579^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1278541 + ... + 1281616.

Almost surely, 2^3937521466 is an apocalyptic number.

3937521466 is a deficient number, since it is larger than the sum of its proper divisors (1976443514).

3937521466 is a wasteful number, since it uses less digits than its factorization.

3937521466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2560928.

The product of its digits is 816480, while the sum is 46.

The square root of 3937521466 is about 62749.6730350047. The cubic root of 3937521466 is about 1579.0927689745.

The spelling of 3937521466 in words is "three billion, nine hundred thirty-seven million, five hundred twenty-one thousand, four hundred sixty-six".