38701856663 has 2 divisors, whose sum is σ = 38701856664. Its totient is φ = 38701856662.

The previous prime is 38701856657. The next prime is 38701856671. The reversal of 38701856663 is 36665810783.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 38701856663 - 2¹⁴ = 38701840279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38701856653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19350928331 + 19350928332.

It is an arithmetic number, because the mean of its divisors is an integer number (19350928332).

Almost surely, 2^38701856663 is an apocalyptic number.

38701856663 is a deficient number, since it is larger than the sum of its proper divisors (1).

38701856663 is an equidigital number, since it uses as much as digits as its factorization.

38701856663 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4354560, while the sum is 53.

The spelling of 38701856663 in words is "thirty-eight billion, seven hundred one million, eight hundred fifty-six thousand, six hundred sixty-three".