20372772013 has 8 divisors (see below), whose sum is σ = 22228095456. Its totient is φ = 18517990800.

The previous prime is 20372772011. The next prime is 20372772019. The reversal of 20372772013 is 31027727302.

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 20372772013 - 2¹ = 20372772011 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 20372772013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20372772011) 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, 54903 + ... + 209188.

It is an arithmetic number, because the mean of its divisors is an integer number (2778511932).

Almost surely, 2^20372772013 is an apocalyptic number.

It is an amenable number.

20372772013 is a deficient number, since it is larger than the sum of its proper divisors (1855323443).

20372772013 is a wasteful number, since it uses less digits than its factorization.

20372772013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271115.

The product of its (nonzero) digits is 24696, while the sum is 34.

The spelling of 20372772013 in words is "twenty billion, three hundred seventy-two million, seven hundred seventy-two thousand, thirteen".