7826146785 has 12 divisors (see below), whose sum is σ = 13565321172. Its totient is φ = 4173944928.

The previous prime is 7826146777. The next prime is 7826146793. The reversal of 7826146785 is 5876416287.

It is an interprime number because it is at equal distance from previous prime (7826146777) and next prime (7826146793).

It can be written as a sum of positive squares in 2 ways, for example, as 896583249 + 6929563536 = 29943^2 + 83244^2 .

It is not a de Polignac number, because 7826146785 - 2³ = 7826146777 is a prime.

It is a super-2 number, since 2×7826146785² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 86957142 + ... + 86957231.

It is an arithmetic number, because the mean of its divisors is an integer number (1130443431).

Almost surely, 2^7826146785 is an apocalyptic number.

It is an amenable number.

7826146785 is a deficient number, since it is larger than the sum of its proper divisors (5739174387).

7826146785 is a wasteful number, since it uses less digits than its factorization.

7826146785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173914384 (or 173914381 counting only the distinct ones).

The product of its digits is 4515840, while the sum is 54.

The square root of 7826146785 is about 88465.5118393603. The cubic root of 7826146785 is about 1985.4059986711.

The spelling of 7826146785 in words is "seven billion, eight hundred twenty-six million, one hundred forty-six thousand, seven hundred eighty-five".