7698706128 has 80 divisors (see below), whose sum is σ = 22220452800. Its totient is φ = 2552031360.

The previous prime is 7698706123. The next prime is 7698706177. The reversal of 7698706128 is 8216078967.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7698706123) 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, 28963 + ... + 127421.

It is an arithmetic number, because the mean of its divisors is an integer number (277755660).

Almost surely, 2^7698706128 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 7698706128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11110226400).

7698706128 is an abundant number, since it is smaller than the sum of its proper divisors (14521746672).

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

7698706128 is a wasteful number, since it uses less digits than its factorization.

7698706128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98657 (or 98645 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 54.

The square root of 7698706128 is about 87742.2710442350. The cubic root of 7698706128 is about 1974.5702106389.

The spelling of 7698706128 in words is "seven billion, six hundred ninety-eight million, seven hundred six thousand, one hundred twenty-eight".