7738378263 has 36 divisors (see below), whose sum is σ = 14184642888. Its totient is φ = 4019934240.

The previous prime is 7738378247. The next prime is 7738378289. The reversal of 7738378263 is 3628738377.

7738378263 is a `hidden beast` number, since 7 + 7 + 3 + 8 + 378 + 263 = 666.

It is not a de Polignac number, because 7738378263 - 2⁴ = 7738378247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7738378363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 792756 + ... + 802457.

It is an arithmetic number, because the mean of its divisors is an integer number (394017858).

Almost surely, 2^7738378263 is an apocalyptic number.

7738378263 is a deficient number, since it is larger than the sum of its proper divisors (6446264625).

7738378263 is a wasteful number, since it uses less digits than its factorization.

7738378263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1595244 (or 1595234 counting only the distinct ones).

The product of its digits is 7112448, while the sum is 54.

The square root of 7738378263 is about 87968.0525133983. The cubic root of 7738378263 is about 1977.9561148000.

The spelling of 7738378263 in words is "seven billion, seven hundred thirty-eight million, three hundred seventy-eight thousand, two hundred sixty-three".