8138763203 has 18 divisors (see below), whose sum is σ = 8504301156. Its totient is φ = 7788551344.

The previous prime is 8138763197. The next prime is 8138763239. The reversal of 8138763203 is 3023678318.

It is not a de Polignac number, because 8138763203 - 2¹² = 8138759107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8138763253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 23454476 + ... + 23454822.

Almost surely, 2^8138763203 is an apocalyptic number.

8138763203 is a deficient number, since it is larger than the sum of its proper divisors (365537953).

8138763203 is an equidigital number, since it uses as much as digits as its factorization.

8138763203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 739 (or 543 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 8138763203 is about 90215.0940973848. The cubic root of 8138763203 is about 2011.4973787381.

The spelling of 8138763203 in words is "eight billion, one hundred thirty-eight million, seven hundred sixty-three thousand, two hundred three".