71077991035 has 4 divisors (see below), whose sum is σ = 85293589248. Its totient is φ = 56862392824.

The previous prime is 71077991009. The next prime is 71077991041. The reversal of 71077991035 is 53019977017.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 71077991035 - 2¹¹ = 71077988987 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 71077991035.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7107799099 + ... + 7107799108.

It is an arithmetic number, because the mean of its divisors is an integer number (21323397312).

Almost surely, 2^71077991035 is an apocalyptic number.

71077991035 is a deficient number, since it is larger than the sum of its proper divisors (14215598213).

71077991035 is a wasteful number, since it uses less digits than its factorization.

71077991035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14215598212.

The product of its (nonzero) digits is 416745, while the sum is 49.

The spelling of 71077991035 in words is "seventy-one billion, seventy-seven million, nine hundred ninety-one thousand, thirty-five".