7863418061 has 2 divisors, whose sum is σ = 7863418062. Its totient is φ = 7863418060.

The previous prime is 7863418039. The next prime is 7863418103. The reversal of 7863418061 is 1608143687.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4899160036 + 2964258025 = 69994^2 + 54445^2 .

It is an emirp because it is prime and its reverse (1608143687) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7863418061 - 2¹⁸ = 7863155917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7863418021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3931709030 + 3931709031.

It is an arithmetic number, because the mean of its divisors is an integer number (3931709031).

Almost surely, 2^7863418061 is an apocalyptic number.

It is an amenable number.

7863418061 is a deficient number, since it is larger than the sum of its proper divisors (1).

7863418061 is an equidigital number, since it uses as much as digits as its factorization.

7863418061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 193536, while the sum is 44.

The square root of 7863418061 is about 88675.9159016697. The cubic root of 7863418061 is about 1988.5527772988.

The spelling of 7863418061 in words is "seven billion, eight hundred sixty-three million, four hundred eighteen thousand, sixty-one".