71109031677 has 16 divisors (see below), whose sum is σ = 98827891392. Its totient is φ = 45436343040.

The previous prime is 71109031663. The next prime is 71109031703. The reversal of 71109031677 is 77613090117.

It is not a de Polignac number, because 71109031677 - 2²⁸ = 70840596221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71109031657) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4773324 + ... + 4788197.

It is an arithmetic number, because the mean of its divisors is an integer number (6176743212).

Almost surely, 2^71109031677 is an apocalyptic number.

It is an amenable number.

71109031677 is a deficient number, since it is larger than the sum of its proper divisors (27718859715).

71109031677 is a wasteful number, since it uses less digits than its factorization.

71109031677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9561628.

The product of its (nonzero) digits is 55566, while the sum is 42.

The spelling of 71109031677 in words is "seventy-one billion, one hundred nine million, thirty-one thousand, six hundred seventy-seven".