3619981612 has 24 divisors (see below), whose sum is σ = 7181342000. Its totient is φ = 1582825536.

The previous prime is 3619981601. The next prime is 3619981627. The reversal of 3619981612 is 2161899163.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1830987 + ... + 1832962.

Almost surely, 2^3619981612 is an apocalyptic number.

It is an amenable number.

3619981612 is a deficient number, since it is larger than the sum of its proper divisors (3561360388).

3619981612 is a wasteful number, since it uses less digits than its factorization.

3619981612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3663985 (or 3663983 counting only the distinct ones).

The product of its digits is 139968, while the sum is 46.

The square root of 3619981612 is about 60166.2830163207. The cubic root of 3619981612 is about 1535.4492083276.

The spelling of 3619981612 in words is "three billion, six hundred nineteen million, nine hundred eighty-one thousand, six hundred twelve".