20372038387 has 16 divisors (see below), whose sum is σ = 20748510720. Its totient is φ = 19998487872.

The previous prime is 20372038381. The next prime is 20372038391. The reversal of 20372038387 is 78383027302.

It is a cyclic number.

It is not a de Polignac number, because 20372038387 - 2¹¹ = 20372036339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20372038381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24280914 + ... + 24281752.

It is an arithmetic number, because the mean of its divisors is an integer number (1296781920).

Almost surely, 2^20372038387 is an apocalyptic number.

20372038387 is a deficient number, since it is larger than the sum of its proper divisors (376472333).

20372038387 is an equidigital number, since it uses as much as digits as its factorization.

20372038387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2082.

The product of its (nonzero) digits is 338688, while the sum is 43.

The spelling of 20372038387 in words is "twenty billion, three hundred seventy-two million, thirty-eight thousand, three hundred eighty-seven".