3601986730920 has 128 divisors (see below), whose sum is σ = 12017571350400. Its totient is φ = 959653882368.

The previous prime is 3601986730891. The next prime is 3601986730999. The reversal of 3601986730920 is 290376891063.

3601986730920 is a `hidden beast` number, since 3 + 601 + 9 + 8 + 6 + 7 + 3 + 0 + 9 + 20 = 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 31 ways as a sum of consecutive naturals, for example, 335374 + ... + 2704893.

It is an arithmetic number, because the mean of its divisors is an integer number (93887276175).

Almost surely, 2^{3601986730920} is an apocalyptic number.

3601986730920 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3601986730920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6008785675200).

3601986730920 is an abundant number, since it is smaller than the sum of its proper divisors (8415584619480).

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

3601986730920 is a wasteful number, since it uses less digits than its factorization.

3601986730920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3041384 (or 3041374 counting only the distinct ones).

The product of its (nonzero) digits is 2939328, while the sum is 54.

The spelling of 3601986730920 in words is "three trillion, six hundred one billion, nine hundred eighty-six million, seven hundred thirty thousand, nine hundred twenty".