7869739836 has 48 divisors (see below), whose sum is σ = 20990914560. Its totient is φ = 2247967680.

The previous prime is 7869739817. The next prime is 7869739837. The reversal of 7869739836 is 6389379687.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7869739837) 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 15 ways as a sum of consecutive naturals, for example, 474085 + ... + 490403.

It is an arithmetic number, because the mean of its divisors is an integer number (437310720).

Almost surely, 2^7869739836 is an apocalyptic number.

It is an amenable number.

7869739836 is an abundant number, since it is smaller than the sum of its proper divisors (13121174724).

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

7869739836 is a wasteful number, since it uses less digits than its factorization.

7869739836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22074 (or 22072 counting only the distinct ones).

The product of its digits is 82301184, while the sum is 66.

The square root of 7869739836 is about 88711.5541290987. The cubic root of 7869739836 is about 1989.0855318755.

The spelling of 7869739836 in words is "seven billion, eight hundred sixty-nine million, seven hundred thirty-nine thousand, eight hundred thirty-six".