6988744761 has 8 divisors (see below), whose sum is σ = 9866463264. Its totient is φ = 4385094720.

The previous prime is 6988744739. The next prime is 6988744769. The reversal of 6988744761 is 1674478896.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6988744761 - 2⁵ = 6988744729 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6988744695 and 6988744704.

It is not an unprimeable number, because it can be changed into a prime (6988744769) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68517055 + ... + 68517156.

It is an arithmetic number, because the mean of its divisors is an integer number (1233307908).

Almost surely, 2^6988744761 is an apocalyptic number.

It is an amenable number.

6988744761 is a deficient number, since it is larger than the sum of its proper divisors (2877718503).

6988744761 is a wasteful number, since it uses less digits than its factorization.

6988744761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137034231.

The product of its digits is 16257024, while the sum is 60.

The square root of 6988744761 is about 83598.7126754952. The cubic root of 6988744761 is about 1911.9053709849.

The spelling of 6988744761 in words is "six billion, nine hundred eighty-eight million, seven hundred forty-four thousand, seven hundred sixty-one".