7138757863 has 2 divisors, whose sum is σ = 7138757864. Its totient is φ = 7138757862.

The previous prime is 7138757849. The next prime is 7138757869. The reversal of 7138757863 is 3687578317.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7138757863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7138757869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3569378931 + 3569378932.

It is an arithmetic number, because the mean of its divisors is an integer number (3569378932).

Almost surely, 2^7138757863 is an apocalyptic number.

7138757863 is a deficient number, since it is larger than the sum of its proper divisors (1).

7138757863 is an equidigital number, since it uses as much as digits as its factorization.

7138757863 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5927040, while the sum is 55.

The square root of 7138757863 is about 84491.1703256618. The cubic root of 7138757863 is about 1925.4882991772.

The spelling of 7138757863 in words is "seven billion, one hundred thirty-eight million, seven hundred fifty-seven thousand, eight hundred sixty-three".