38787376973 has 2 divisors, whose sum is σ = 38787376974. Its totient is φ = 38787376972.

The previous prime is 38787376961. The next prime is 38787376981. The reversal of 38787376973 is 37967378783.

38787376973 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28651317289 + 10136059684 = 169267^2 + 100678^2 .

It is an emirp because it is prime and its reverse (37967378783) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38787376973 - 2¹⁸ = 38787114829 is a prime.

It is a super-2 number, since 2×38787376973² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38787376073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19393688486 + 19393688487.

It is an arithmetic number, because the mean of its divisors is an integer number (19393688487).

Almost surely, 2^38787376973 is an apocalyptic number.

It is an amenable number.

38787376973 is a deficient number, since it is larger than the sum of its proper divisors (1).

38787376973 is an equidigital number, since it uses as much as digits as its factorization.

38787376973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 224042112, while the sum is 68.

The spelling of 38787376973 in words is "thirty-eight billion, seven hundred eighty-seven million, three hundred seventy-six thousand, nine hundred seventy-three".