6988122720 has 120 divisors (see below), whose sum is σ = 24662295504. Its totient is φ = 1863495936.

The previous prime is 6988122677. The next prime is 6988122733. The reversal of 6988122720 is 272218896.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 256644 + ... + 282563.

Almost surely, 2^6988122720 is an apocalyptic number.

6988122720 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6988122720 is an abundant number, since it is smaller than the sum of its proper divisors (17674172784).

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

6988122720 is a wasteful number, since it uses less digits than its factorization.

6988122720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539234 (or 539217 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 6988122720 is about 83594.9921945089. The cubic root of 6988122720 is about 1911.8486455472.

The spelling of 6988122720 in words is "six billion, nine hundred eighty-eight million, one hundred twenty-two thousand, seven hundred twenty".