20032970689 has 2 divisors, whose sum is σ = 20032970690. Its totient is φ = 20032970688.

The previous prime is 20032970621. The next prime is 20032970747. The reversal of 20032970689 is 98607923002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17984955664 + 2048015025 = 134108^2 + 45255^2 .

It is a cyclic number.

It is not a de Polignac number, because 20032970689 - 2²¹ = 20030873537 is a prime.

It is not a weakly prime, because it can be changed into another prime (20032979689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10016485344 + 10016485345.

It is an arithmetic number, because the mean of its divisors is an integer number (10016485345).

Almost surely, 2^20032970689 is an apocalyptic number.

It is an amenable number.

20032970689 is a deficient number, since it is larger than the sum of its proper divisors (1).

20032970689 is an equidigital number, since it uses as much as digits as its factorization.

20032970689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 326592, while the sum is 46.

The spelling of 20032970689 in words is "twenty billion, thirty-two million, nine hundred seventy thousand, six hundred eighty-nine".