6980042191 has 2 divisors, whose sum is σ = 6980042192. Its totient is φ = 6980042190.

The previous prime is 6980042149. The next prime is 6980042197. The reversal of 6980042191 is 1912400896.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6980042191 - 2⁷ = 6980042063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6980042197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3490021095 + 3490021096.

It is an arithmetic number, because the mean of its divisors is an integer number (3490021096).

Almost surely, 2^6980042191 is an apocalyptic number.

6980042191 is a deficient number, since it is larger than the sum of its proper divisors (1).

6980042191 is an equidigital number, since it uses as much as digits as its factorization.

6980042191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 40.

The square root of 6980042191 is about 83546.6467968643. The cubic root of 6980042191 is about 1911.1114562975. Note that the first 3 decimals are identical.

The spelling of 6980042191 in words is "six billion, nine hundred eighty million, forty-two thousand, one hundred ninety-one".