38796078787 has 2 divisors, whose sum is σ = 38796078788. Its totient is φ = 38796078786.

The previous prime is 38796078781. The next prime is 38796078791. The reversal of 38796078787 is 78787069783.

It is a strong prime.

It is an emirp because it is prime and its reverse (78787069783) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38796078787 is a prime.

It is a super-2 number, since 2×38796078787² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (38796078781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19398039393 + 19398039394.

It is an arithmetic number, because the mean of its divisors is an integer number (19398039394).

Almost surely, 2^38796078787 is an apocalyptic number.

38796078787 is a deficient number, since it is larger than the sum of its proper divisors (1).

38796078787 is an equidigital number, since it uses as much as digits as its factorization.

38796078787 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 199148544, while the sum is 70.

The spelling of 38796078787 in words is "thirty-eight billion, seven hundred ninety-six million, seventy-eight thousand, seven hundred eighty-seven".