3619801818216 has 80 divisors (see below), whose sum is σ = 10168015825440. Its totient is φ = 1203123296160.

The previous prime is 3619801818209. The next prime is 3619801818239. The reversal of 3619801818216 is 6128181089163.

It is a happy number.

3619801818216 is a `hidden beast` number, since 3 + 619 + 8 + 0 + 1 + 8 + 1 + 8 + 2 + 16 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 7824300 + ... + 8274011.

It is an arithmetic number, because the mean of its divisors is an integer number (127100197818).

Almost surely, 2^{3619801818216} is an apocalyptic number.

3619801818216 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

3619801818216 is an abundant number, since it is smaller than the sum of its proper divisors (6548214007224).

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

3619801818216 is a wasteful number, since it uses less digits than its factorization.

3619801818216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16098676 (or 16098663 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 54.

The spelling of 3619801818216 in words is "three trillion, six hundred nineteen billion, eight hundred one million, eight hundred eighteen thousand, two hundred sixteen".