6988981012 has 12 divisors (see below), whose sum is σ = 13171541236. Its totient is φ = 3225683520.

The previous prime is 6988981007. The next prime is 6988981019. The reversal of 6988981012 is 2101898896.

It can be written as a sum of positive squares in 2 ways, for example, as 556299396 + 6432681616 = 23586^2 + 80204^2 .

It is a Harshad number since it is a multiple of its sum of digits (52), and also a Moran number because the ratio is a prime number: 134403481 = 6988981012 / (6 + 9 + 8 + 8 + 9 + 8 + 1 + 0 + 1 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6988981019) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 67201689 + ... + 67201792.

Almost surely, 2^6988981012 is an apocalyptic number.

It is an amenable number.

6988981012 is a deficient number, since it is larger than the sum of its proper divisors (6182560224).

6988981012 is a wasteful number, since it uses less digits than its factorization.

6988981012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134403498 (or 134403496 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 52.

The square root of 6988981012 is about 83600.1256697620. The cubic root of 6988981012 is about 1911.9269144084.

The spelling of 6988981012 in words is "six billion, nine hundred eighty-eight million, nine hundred eighty-one thousand, twelve".