7698139680 has 192 divisors, whose sum is σ = 30232839168. Its totient is φ = 1599605760.

The previous prime is 7698139679. The next prime is 7698139723. The reversal of 7698139680 is 869318967.

It is a super-2 number, since 2×7698139680² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7698139680.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 67182 + ... + 141101.

It is an arithmetic number, because the mean of its divisors is an integer number (157462704).

Almost surely, 2^7698139680 is an apocalyptic number.

7698139680 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

7698139680 is an abundant number, since it is smaller than the sum of its proper divisors (22534699488).

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

7698139680 is a wasteful number, since it uses less digits than its factorization.

7698139680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208319 (or 208311 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 57.

The square root of 7698139680 is about 87739.0430766144. The cubic root of 7698139680 is about 1974.5217817747.

The spelling of 7698139680 in words is "seven billion, six hundred ninety-eight million, one hundred thirty-nine thousand, six hundred eighty".