20132690939 has 2 divisors, whose sum is σ = 20132690940. Its totient is φ = 20132690938.

The previous prime is 20132690927. The next prime is 20132690953. The reversal of 20132690939 is 93909623102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20132690939 - 2⁴ = 20132690923 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20132690939.

It is not a weakly prime, because it can be changed into another prime (20132690989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10066345469 + 10066345470.

It is an arithmetic number, because the mean of its divisors is an integer number (10066345470).

Almost surely, 2^20132690939 is an apocalyptic number.

20132690939 is a deficient number, since it is larger than the sum of its proper divisors (1).

20132690939 is an equidigital number, since it uses as much as digits as its factorization.

20132690939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 157464, while the sum is 44.

The spelling of 20132690939 in words is "twenty billion, one hundred thirty-two million, six hundred ninety thousand, nine hundred thirty-nine".