7761718332 has 72 divisors (see below), whose sum is σ = 19978358400. Its totient is φ = 2540085408.

The previous prime is 7761718309. The next prime is 7761718337. The reversal of 7761718332 is 2338171677.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7761718337) 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 23 ways as a sum of consecutive naturals, for example, 2052019 + ... + 2055797.

It is an arithmetic number, because the mean of its divisors is an integer number (277477200).

Almost surely, 2^7761718332 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 7761718332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9989179200).

7761718332 is an abundant number, since it is smaller than the sum of its proper divisors (12216640068).

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

7761718332 is a wasteful number, since it uses less digits than its factorization.

7761718332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4815 (or 4810 counting only the distinct ones).

The product of its digits is 296352, while the sum is 45.

The square root of 7761718332 is about 88100.6148219182. The cubic root of 7761718332 is about 1979.9427194938.

The spelling of 7761718332 in words is "seven billion, seven hundred sixty-one million, seven hundred eighteen thousand, three hundred thirty-two".