71118035851 has 2 divisors, whose sum is σ = 71118035852. Its totient is φ = 71118035850.

The previous prime is 71118035831. The next prime is 71118035897. The reversal of 71118035851 is 15853081117.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 71118035851 - 2²⁷ = 70983818123 is a prime.

It is not a weakly prime, because it can be changed into another prime (71118035831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35559017925 + 35559017926.

It is an arithmetic number, because the mean of its divisors is an integer number (35559017926).

Almost surely, 2^71118035851 is an apocalyptic number.

71118035851 is a deficient number, since it is larger than the sum of its proper divisors (1).

71118035851 is an equidigital number, since it uses as much as digits as its factorization.

71118035851 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 33600, while the sum is 40.

The spelling of 71118035851 in words is "seventy-one billion, one hundred eighteen million, thirty-five thousand, eight hundred fifty-one".