6980042149 has 2 divisors, whose sum is σ = 6980042150. Its totient is φ = 6980042148.

The previous prime is 6980042137. The next prime is 6980042191. The reversal of 6980042149 is 9412400896.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3770819649 + 3209222500 = 61407^2 + 56650^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6980042149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6980042549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3490021074 + 3490021075.

It is an arithmetic number, because the mean of its divisors is an integer number (3490021075).

Almost surely, 2^6980042149 is an apocalyptic number.

It is an amenable number.

6980042149 is a deficient number, since it is larger than the sum of its proper divisors (1).

6980042149 is an equidigital number, since it uses as much as digits as its factorization.

6980042149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 124416, while the sum is 43.

The square root of 6980042149 is about 83546.6465455077. The cubic root of 6980042149 is about 1911.1114524644. Note that the first 3 decimals are identical.

The spelling of 6980042149 in words is "six billion, nine hundred eighty million, forty-two thousand, one hundred forty-nine".