20038700387 has 2 divisors, whose sum is σ = 20038700388. Its totient is φ = 20038700386.

The previous prime is 20038700333. The next prime is 20038700399. The reversal of 20038700387 is 78300783002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20038700387 - 2²⁰ = 20037651811 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20038700387.

It is not a weakly prime, because it can be changed into another prime (20038700287) 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, 10019350193 + 10019350194.

It is an arithmetic number, because the mean of its divisors is an integer number (10019350194).

Almost surely, 2^20038700387 is an apocalyptic number.

20038700387 is a deficient number, since it is larger than the sum of its proper divisors (1).

20038700387 is an equidigital number, since it uses as much as digits as its factorization.

20038700387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56448, while the sum is 38.

The spelling of 20038700387 in words is "twenty billion, thirty-eight million, seven hundred thousand, three hundred eighty-seven".