38661764107 has 2 divisors, whose sum is σ = 38661764108. Its totient is φ = 38661764106.

The previous prime is 38661764087. The next prime is 38661764143. The reversal of 38661764107 is 70146716683.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 38661764107 - 2¹⁹ = 38661239819 is a prime.

It is not a weakly prime, because it can be changed into another prime (38661764147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19330882053 + 19330882054.

It is an arithmetic number, because the mean of its divisors is an integer number (19330882054).

Almost surely, 2^38661764107 is an apocalyptic number.

38661764107 is a deficient number, since it is larger than the sum of its proper divisors (1).

38661764107 is an equidigital number, since it uses as much as digits as its factorization.

38661764107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1016064, while the sum is 49.

The spelling of 38661764107 in words is "thirty-eight billion, six hundred sixty-one million, seven hundred sixty-four thousand, one hundred seven".