1038378667 has 2 divisors, whose sum is σ = 1038378668. Its totient is φ = 1038378666.

The previous prime is 1038378659. The next prime is 1038378773. The reversal of 1038378667 is 7668738301.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1038378667 - 2³ = 1038378659 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1038378667.

It is not a weakly prime, because it can be changed into another prime (1038378637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 519189333 + 519189334.

It is an arithmetic number, because the mean of its divisors is an integer number (519189334).

Almost surely, 2^1038378667 is an apocalyptic number.

1038378667 is a deficient number, since it is larger than the sum of its proper divisors (1).

1038378667 is an equidigital number, since it uses as much as digits as its factorization.

1038378667 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 square root of 1038378667 is about 32223.8834872521. The cubic root of 1038378667 is about 1012.6326335824.

The spelling of 1038378667 in words is "one billion, thirty-eight million, three hundred seventy-eight thousand, six hundred sixty-seven".