6998158967 has 2 divisors, whose sum is σ = 6998158968. Its totient is φ = 6998158966.

The previous prime is 6998158957. The next prime is 6998159057. The reversal of 6998158967 is 7698518996.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6998158967 - 2¹² = 6998154871 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6998158897 and 6998158906.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6998158957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3499079483 + 3499079484.

It is an arithmetic number, because the mean of its divisors is an integer number (3499079484).

Almost surely, 2^6998158967 is an apocalyptic number.

6998158967 is a deficient number, since it is larger than the sum of its proper divisors (1).

6998158967 is an equidigital number, since it uses as much as digits as its factorization.

6998158967 is an evil number, because the sum of its binary digits is even.

The product of its digits is 58786560, while the sum is 68.

The square root of 6998158967 is about 83654.9996533381. Note that the first 3 decimals coincide. The cubic root of 6998158967 is about 1912.7634647616.

The spelling of 6998158967 in words is "six billion, nine hundred ninety-eight million, one hundred fifty-eight thousand, nine hundred sixty-seven".