7915378963 has 2 divisors, whose sum is σ = 7915378964. Its totient is φ = 7915378962.

The previous prime is 7915378951. The next prime is 7915379077. The reversal of 7915378963 is 3698735197.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7915378963 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7915378898 and 7915378907.

It is not a weakly prime, because it can be changed into another prime (7915378903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3957689481 + 3957689482.

It is an arithmetic number, because the mean of its divisors is an integer number (3957689482).

Almost surely, 2^7915378963 is an apocalyptic number.

7915378963 is a deficient number, since it is larger than the sum of its proper divisors (1).

7915378963 is an equidigital number, since it uses as much as digits as its factorization.

7915378963 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8573040, while the sum is 58.

The square root of 7915378963 is about 88968.4155360766. The cubic root of 7915378963 is about 1992.9232361575.

The spelling of 7915378963 in words is "seven billion, nine hundred fifteen million, three hundred seventy-eight thousand, nine hundred sixty-three".