3990151611 has 28 divisors (see below), whose sum is σ = 6128451000. Its totient is φ = 2595201120.

The previous prime is 3990151597. The next prime is 3990151631. The reversal of 3990151611 is 1161510993.

It is a happy number.

3990151611 is a `hidden beast` number, since 39 + 9 + 0 + 1 + 5 + 1 + 611 = 666.

It is not a de Polignac number, because 3990151611 - 2⁶ = 3990151547 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3990151631) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 36861 + ... + 96638.

It is an arithmetic number, because the mean of its divisors is an integer number (218873250).

Almost surely, 2^3990151611 is an apocalyptic number.

3990151611 is a deficient number, since it is larger than the sum of its proper divisors (2138299389).

3990151611 is an equidigital number, since it uses as much as digits as its factorization.

3990151611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133558 (or 133543 counting only the distinct ones).

The product of its (nonzero) digits is 7290, while the sum is 36.

The square root of 3990151611 is about 63167.6468692637. The cubic root of 3990151611 is about 1586.0972027259.

The spelling of 3990151611 in words is "three billion, nine hundred ninety million, one hundred fifty-one thousand, six hundred eleven".