38185937077 has 2 divisors, whose sum is σ = 38185937078. Its totient is φ = 38185937076.

The previous prime is 38185937063. The next prime is 38185937143. The reversal of 38185937077 is 77073958183.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36085181521 + 2100755556 = 189961^2 + 45834^2 .

It is an emirp because it is prime and its reverse (77073958183) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38185937077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38185937017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19092968538 + 19092968539.

It is an arithmetic number, because the mean of its divisors is an integer number (19092968539).

Almost surely, 2^38185937077 is an apocalyptic number.

It is an amenable number.

38185937077 is a deficient number, since it is larger than the sum of its proper divisors (1).

38185937077 is an equidigital number, since it uses as much as digits as its factorization.

38185937077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8890560, while the sum is 58.

The spelling of 38185937077 in words is "thirty-eight billion, one hundred eighty-five million, nine hundred thirty-seven thousand, seventy-seven".