3631461018 has 32 divisors (see below), whose sum is σ = 7708006656. Its totient is φ = 1136636928.

The previous prime is 3631460981. The next prime is 3631461059. The reversal of 3631461018 is 8101641363.

It is a self number, because there is not a number n which added to its sum of digits gives 3631461018.

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 15 ways as a sum of consecutive naturals, for example, 3055 + ... + 85277.

It is an arithmetic number, because the mean of its divisors is an integer number (240875208).

Almost surely, 2^3631461018 is an apocalyptic number.

3631461018 is an abundant number, since it is smaller than the sum of its proper divisors (4076545638).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3631461018 is a wasteful number, since it uses less digits than its factorization.

3631461018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82678.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 3631461018 is about 60261.6048408935. The cubic root of 3631461018 is about 1537.0705283642.

The spelling of 3631461018 in words is "three billion, six hundred thirty-one million, four hundred sixty-one thousand, eighteen".