71051056999 has 16 divisors (see below), whose sum is σ = 78209252352. Its totient is φ = 64136992608.

The previous prime is 71051056991. The next prime is 71051057017. The reversal of 71051056999 is 99965015017.

It is not a de Polignac number, because 71051056999 - 2³ = 71051056991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71051056991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 699712 + ... + 794794.

It is an arithmetic number, because the mean of its divisors is an integer number (4888078272).

Almost surely, 2^71051056999 is an apocalyptic number.

71051056999 is a deficient number, since it is larger than the sum of its proper divisors (7158195353).

71051056999 is a wasteful number, since it uses less digits than its factorization.

71051056999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96366.

The product of its (nonzero) digits is 765450, while the sum is 52.

The spelling of 71051056999 in words is "seventy-one billion, fifty-one million, fifty-six thousand, nine hundred ninety-nine".