7706787072 has 144 divisors (see below), whose sum is σ = 21806471232. Its totient is φ = 2407956480.

The previous prime is 7706787059. The next prime is 7706787107. The reversal of 7706787072 is 2707876077.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3615447 + ... + 3617577.

It is an arithmetic number, because the mean of its divisors is an integer number (151433828).

Almost surely, 2^7706787072 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 7706787072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10903235616).

7706787072 is an abundant number, since it is smaller than the sum of its proper divisors (14099684160).

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

7706787072 is a wasteful number, since it uses less digits than its factorization.

7706787072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2444 (or 2430 counting only the distinct ones).

The product of its (nonzero) digits is 1613472, while the sum is 51.

The square root of 7706787072 is about 87788.3082876074. The cubic root of 7706787072 is about 1975.2608380167.

The spelling of 7706787072 in words is "seven billion, seven hundred six million, seven hundred eighty-seven thousand, seventy-two".