7865000792881 has 2 divisors, whose sum is σ = 7865000792882. Its totient is φ = 7865000792880.

The previous prime is 7865000792813. The next prime is 7865000792947. The reversal of 7865000792881 is 1882970005687.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7186774425856 + 678226367025 = 2680816^2 + 823545^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7865000792881 is a prime.

It is a super-2 number, since 2×7865000792881² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7865000798881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3932500396440 + 3932500396441.

It is an arithmetic number, because the mean of its divisors is an integer number (3932500396441).

Almost surely, 2^{7865000792881} is an apocalyptic number.

It is an amenable number.

7865000792881 is a deficient number, since it is larger than the sum of its proper divisors (1).

7865000792881 is an equidigital number, since it uses as much as digits as its factorization.

7865000792881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13547520, while the sum is 61.

The spelling of 7865000792881 in words is "seven trillion, eight hundred sixty-five billion, seven hundred ninety-two thousand, eight hundred eighty-one".