218019600379836 has 24 divisors (see below), whose sum is σ = 565236000985040. Its totient is φ = 72673200126576.

The previous prime is 218019600379831. The next prime is 218019600379883. The reversal of 218019600379836 is 638973006910812.

218019600379836 is a `hidden beast` number, since 2 + 1 + 8 + 0 + 19 + 600 + 3 + 7 + 9 + 8 + 3 + 6 = 666.

It is a super-2 number, since 2×218019600379836² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218019600379831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1009350001651 + ... + 1009350001866.

Almost surely, 2^{218019600379836} is an apocalyptic number.

It is an amenable number.

218019600379836 is an abundant number, since it is smaller than the sum of its proper divisors (347216400605204).

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

218019600379836 is a wasteful number, since it uses less digits than its factorization.

218019600379836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2018700003530 (or 2018700003522 counting only the distinct ones).

The product of its (nonzero) digits is 23514624, while the sum is 63.

The spelling of 218019600379836 in words is "two hundred eighteen trillion, nineteen billion, six hundred million, three hundred seventy-nine thousand, eight hundred thirty-six".