7882821524 has 6 divisors (see below), whose sum is σ = 13794937674. Its totient is φ = 3941410760.

The previous prime is 7882821521. The next prime is 7882821643. The reversal of 7882821524 is 4251282887.

It can be written as a sum of positive squares in only one way, i.e., 5700250000 + 2182571524 = 75500^2 + 46718^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7882821521) 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 as a sum of consecutive naturals, namely, 985352687 + ... + 985352694.

It is an arithmetic number, because the mean of its divisors is an integer number (2299156279).

Almost surely, 2^7882821524 is an apocalyptic number.

It is an amenable number.

7882821524 is a deficient number, since it is larger than the sum of its proper divisors (5912116150).

7882821524 is a wasteful number, since it uses less digits than its factorization.

7882821524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1970705385 (or 1970705383 counting only the distinct ones).

The product of its digits is 573440, while the sum is 47.

The square root of 7882821524 is about 88785.2551046625. The cubic root of 7882821524 is about 1990.1870588367.

The spelling of 7882821524 in words is "seven billion, eight hundred eighty-two million, eight hundred twenty-one thousand, five hundred twenty-four".