3969915149 has 16 divisors (see below), whose sum is σ = 4172636160. Its totient is φ = 3772429680.

The previous prime is 3969915133. The next prime is 3969915167. The reversal of 3969915149 is 9415199693.

It is not a de Polignac number, because 3969915149 - 2⁴ = 3969915133 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3969915094 and 3969915103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3969915449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 425072 + ... + 434310.

It is an arithmetic number, because the mean of its divisors is an integer number (260789760).

Almost surely, 2^3969915149 is an apocalyptic number.

It is an amenable number.

3969915149 is a deficient number, since it is larger than the sum of its proper divisors (202721011).

3969915149 is a wasteful number, since it uses less digits than its factorization.

3969915149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9520.

The product of its digits is 2361960, while the sum is 56.

The square root of 3969915149 is about 63007.2626686797. The cubic root of 3969915149 is about 1583.4113055994.

The spelling of 3969915149 in words is "three billion, nine hundred sixty-nine million, nine hundred fifteen thousand, one hundred forty-nine".