3668913720 has 48 divisors (see below), whose sum is σ = 11923970760. Its totient is φ = 978376896.

The previous prime is 3668913709. The next prime is 3668913733. The reversal of 3668913720 is 273198663.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5095354 + ... + 5096073.

Almost surely, 2^3668913720 is an apocalyptic number.

3668913720 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3668913720 is an abundant number, since it is smaller than the sum of its proper divisors (8255057040).

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

3668913720 is a wasteful number, since it uses less digits than its factorization.

3668913720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10191444 (or 10191437 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The square root of 3668913720 is about 60571.5586723670. The cubic root of 3668913720 is about 1542.3366058504.

The spelling of 3668913720 in words is "three billion, six hundred sixty-eight million, nine hundred thirteen thousand, seven hundred twenty".