20368807357 has 8 divisors (see below), whose sum is σ = 20750352480. Its totient is φ = 19988472720.

The previous prime is 20368807321. The next prime is 20368807369. The reversal of 20368807357 is 75370886302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20368807357 - 2³¹ = 18221323709 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20368807357.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20368807457) 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, 268618 + ... + 335995.

It is an arithmetic number, because the mean of its divisors is an integer number (2593794060).

Almost surely, 2^20368807357 is an apocalyptic number.

It is an amenable number.

20368807357 is a deficient number, since it is larger than the sum of its proper divisors (381545123).

20368807357 is an equidigital number, since it uses as much as digits as its factorization.

20368807357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605243.

The product of its (nonzero) digits is 1693440, while the sum is 49.

The spelling of 20368807357 in words is "twenty billion, three hundred sixty-eight million, eight hundred seven thousand, three hundred fifty-seven".