7826728751 has 16 divisors (see below), whose sum is σ = 8164282368. Its totient is φ = 7494832800.

The previous prime is 7826728747. The next prime is 7826728781. The reversal of 7826728751 is 1578276287.

It is not a de Polignac number, because 7826728751 - 2² = 7826728747 is a prime.

It is a super-2 number, since 2×7826728751² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7826728693 and 7826728702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7826728781) 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, 1512170 + ... + 1517336.

It is an arithmetic number, because the mean of its divisors is an integer number (510267648).

Almost surely, 2^7826728751 is an apocalyptic number.

7826728751 is a deficient number, since it is larger than the sum of its proper divisors (337553617).

7826728751 is a wasteful number, since it uses less digits than its factorization.

7826728751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5702.

The product of its digits is 2634240, while the sum is 53.

The square root of 7826728751 is about 88468.8010035176. The cubic root of 7826728751 is about 1985.4552102086.

The spelling of 7826728751 in words is "seven billion, eight hundred twenty-six million, seven hundred twenty-eight thousand, seven hundred fifty-one".