7982619461 has 4 divisors (see below), whose sum is σ = 7982857932. Its totient is φ = 7982380992.

The previous prime is 7982619439. The next prime is 7982619493. The reversal of 7982619461 is 1649162897.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4419723361 + 3562896100 = 66481^2 + 59690^2 .

It is a cyclic number.

It is not a de Polignac number, because 7982619461 - 2³⁰ = 6908877637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7982619401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58820 + ... + 139373.

It is an arithmetic number, because the mean of its divisors is an integer number (1995714483).

Almost surely, 2^7982619461 is an apocalyptic number.

It is an amenable number.

7982619461 is a deficient number, since it is larger than the sum of its proper divisors (238471).

7982619461 is a wasteful number, since it uses less digits than its factorization.

7982619461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238470.

The product of its digits is 1306368, while the sum is 53.

The square root of 7982619461 is about 89345.5061041125. The cubic root of 7982619461 is about 1998.5505715824.

The spelling of 7982619461 in words is "seven billion, nine hundred eighty-two million, six hundred nineteen thousand, four hundred sixty-one".