38384090687 has 2 divisors, whose sum is σ = 38384090688. Its totient is φ = 38384090686.

The previous prime is 38384090677. The next prime is 38384090749. The reversal of 38384090687 is 78609048383.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 38384090687 - 2⁶ = 38384090623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38384090617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19192045343 + 19192045344.

It is an arithmetic number, because the mean of its divisors is an integer number (19192045344).

Almost surely, 2^38384090687 is an apocalyptic number.

38384090687 is a deficient number, since it is larger than the sum of its proper divisors (1).

38384090687 is an equidigital number, since it uses as much as digits as its factorization.

38384090687 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6967296, while the sum is 56.

The spelling of 38384090687 in words is "thirty-eight billion, three hundred eighty-four million, ninety thousand, six hundred eighty-seven".