7669815040 has 72 divisors (see below), whose sum is σ = 18484815888. Its totient is φ = 3049021440.

The previous prime is 7669815029. The next prime is 7669815067. The reversal of 7669815040 is 405189667.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190260 + ... + 227020.

It is an arithmetic number, because the mean of its divisors is an integer number (256733554).

Almost surely, 2^7669815040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7669815040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9242407944).

7669815040 is an abundant number, since it is smaller than the sum of its proper divisors (10815000848).

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

7669815040 is a wasteful number, since it uses less digits than its factorization.

7669815040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36945 (or 36931 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 7669815040 is about 87577.4802103829. The cubic root of 7669815040 is about 1972.0971114370.

The spelling of 7669815040 in words is "seven billion, six hundred sixty-nine million, eight hundred fifteen thousand, forty".