7315986851 has 2 divisors, whose sum is σ = 7315986852. Its totient is φ = 7315986850.

The previous prime is 7315986817. The next prime is 7315986857. The reversal of 7315986851 is 1586895137.

It is a strong prime.

It is an emirp because it is prime and its reverse (1586895137) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7315986851 - 2⁶ = 7315986787 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7315986793 and 7315986802.

It is not a weakly prime, because it can be changed into another prime (7315986857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3657993425 + 3657993426.

It is an arithmetic number, because the mean of its divisors is an integer number (3657993426).

Almost surely, 2^7315986851 is an apocalyptic number.

7315986851 is a deficient number, since it is larger than the sum of its proper divisors (1).

7315986851 is an equidigital number, since it uses as much as digits as its factorization.

7315986851 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1814400, while the sum is 53.

The square root of 7315986851 is about 85533.5422568246. The cubic root of 7315986851 is about 1941.2924794092.

The spelling of 7315986851 in words is "seven billion, three hundred fifteen million, nine hundred eighty-six thousand, eight hundred fifty-one".