7863242438 has 16 divisors (see below), whose sum is σ = 12311295840. Its totient is φ = 3759577536.

The previous prime is 7863242423. The next prime is 7863242501. The reversal of 7863242438 is 8342423687.

It is a junction number, because it is equal to n+sod(n) for n = 7863242392 and 7863242401.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 145898 + ... + 192386.

It is an arithmetic number, because the mean of its divisors is an integer number (769455990).

Almost surely, 2^7863242438 is an apocalyptic number.

7863242438 is a deficient number, since it is larger than the sum of its proper divisors (4448053402).

7863242438 is a wasteful number, since it uses less digits than its factorization.

7863242438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50191.

The product of its digits is 1548288, while the sum is 47.

The square root of 7863242438 is about 88674.9256441752. The cubic root of 7863242438 is about 1988.5379729563.

The spelling of 7863242438 in words is "seven billion, eight hundred sixty-three million, two hundred forty-two thousand, four hundred thirty-eight".