3699320647680 has 2288 divisors, whose sum is σ = 16715553246720. Its totient is φ = 766227382272.

The previous prime is 3699320647643. The next prime is 3699320647709. The reversal of 3699320647680 is 867460239963.

3699320647680 is a `hidden beast` number, since 3 + 69 + 9 + 3 + 20 + 6 + 476 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 175 ways as a sum of consecutive naturals, for example, 160840028149 + ... + 160840028171.

Almost surely, 2^{3699320647680} is an apocalyptic number.

3699320647680 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 3699320647680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8357776623360).

3699320647680 is an abundant number, since it is smaller than the sum of its proper divisors (13016232599040).

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

3699320647680 is an frugal number, since it uses more digits than its factorization.

3699320647680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108 (or 59 counting only the distinct ones).

The product of its (nonzero) digits is 70543872, while the sum is 63.

The spelling of 3699320647680 in words is "three trillion, six hundred ninety-nine billion, three hundred twenty million, six hundred forty-seven thousand, six hundred eighty".