3721505890 has 16 divisors (see below), whose sum is σ = 6699631680. Its totient is φ = 1488397680.

The previous prime is 3721505867. The next prime is 3721505911. The reversal of 3721505890 is 985051273.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66595 + ... + 108985.

It is an arithmetic number, because the mean of its divisors is an integer number (418726980).

Almost surely, 2^3721505890 is an apocalyptic number.

3721505890 is a deficient number, since it is larger than the sum of its proper divisors (2978125790).

3721505890 is a wasteful number, since it uses less digits than its factorization.

3721505890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51177.

The product of its (nonzero) digits is 75600, while the sum is 40.

The square root of 3721505890 is about 61004.1464984144. The cubic root of 3721505890 is about 1549.6712296104.

The spelling of 3721505890 in words is "three billion, seven hundred twenty-one million, five hundred five thousand, eight hundred ninety".