6988457071 has 2 divisors, whose sum is σ = 6988457072. Its totient is φ = 6988457070.

The previous prime is 6988457059. The next prime is 6988457117. The reversal of 6988457071 is 1707548896.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6988457071 - 2²⁹ = 6451586159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6988457771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3494228535 + 3494228536.

It is an arithmetic number, because the mean of its divisors is an integer number (3494228536).

Almost surely, 2^6988457071 is an apocalyptic number.

6988457071 is a deficient number, since it is larger than the sum of its proper divisors (1).

6988457071 is an equidigital number, since it uses as much as digits as its factorization.

6988457071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3386880, while the sum is 55.

The square root of 6988457071 is about 83596.9919973201. The cubic root of 6988457071 is about 1911.8791362497.

The spelling of 6988457071 in words is "six billion, nine hundred eighty-eight million, four hundred fifty-seven thousand, seventy-one".