38020783973 has 2 divisors, whose sum is σ = 38020783974. Its totient is φ = 38020783972.

The previous prime is 38020783963. The next prime is 38020784047. The reversal of 38020783973 is 37938702083.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37735782049 + 285001924 = 194257^2 + 16882^2 .

It is a cyclic number.

It is not a de Polignac number, because 38020783973 - 2¹² = 38020779877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38020783963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19010391986 + 19010391987.

It is an arithmetic number, because the mean of its divisors is an integer number (19010391987).

Almost surely, 2^38020783973 is an apocalyptic number.

It is an amenable number.

38020783973 is a deficient number, since it is larger than the sum of its proper divisors (1).

38020783973 is an equidigital number, since it uses as much as digits as its factorization.

38020783973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1524096, while the sum is 50.

The spelling of 38020783973 in words is "thirty-eight billion, twenty million, seven hundred eighty-three thousand, nine hundred seventy-three".