3685018687020 has 72 divisors (see below), whose sum is σ = 12194061843600. Its totient is φ = 893337863040.

The previous prime is 3685018686977. The next prime is 3685018687127. The reversal of 3685018687020 is 207868105863.

3685018687020 is a `hidden beast` number, since 3 + 6 + 8 + 501 + 8 + 68 + 70 + 2 + 0 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 930558295 + ... + 930562254.

It is an arithmetic number, because the mean of its divisors is an integer number (169361970050).

Almost surely, 2^{3685018687020} is an apocalyptic number.

3685018687020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3685018687020 is an abundant number, since it is smaller than the sum of its proper divisors (8509043156580).

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

3685018687020 is a wasteful number, since it uses less digits than its factorization.

3685018687020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1861120575 (or 1861120570 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 54.

The spelling of 3685018687020 in words is "three trillion, six hundred eighty-five billion, eighteen million, six hundred eighty-seven thousand, twenty".