7862819445 has 160 divisors (see below), whose sum is σ = 16392499200. Its totient is φ = 3573351936.

The previous prime is 7862819443. The next prime is 7862819467. The reversal of 7862819445 is 5449182687.

It is a happy number.

7862819445 is a `hidden beast` number, since 7 + 8 + 628 + 1 + 9 + 4 + 4 + 5 = 666.

It is not a de Polignac number, because 7862819445 - 2¹ = 7862819443 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 7862819391 and 7862819400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7862819441) by changing a digit.

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 159 ways as a sum of consecutive naturals, for example, 3510636 + ... + 3512874.

It is an arithmetic number, because the mean of its divisors is an integer number (102453120).

Almost surely, 2^7862819445 is an apocalyptic number.

It is an amenable number.

7862819445 is an abundant number, since it is smaller than the sum of its proper divisors (8529679755).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7862819445 is a wasteful number, since it uses less digits than its factorization.

7862819445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2321 (or 2312 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 54.

The square root of 7862819445 is about 88672.5405353878. The cubic root of 7862819445 is about 1988.5023153705.

The spelling of 7862819445 in words is "seven billion, eight hundred sixty-two million, eight hundred nineteen thousand, four hundred forty-five".