71113382077 has 12 divisors (see below), whose sum is σ = 77348821440. Its totient is φ = 65197311480.

The previous prime is 71113382059. The next prime is 71113382107. The reversal of 71113382077 is 77028331117.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-71113382077 is a prime.

It is a super-2 number, since 2×71113382077² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71113382027) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1929093 + ... + 1965610.

It is an arithmetic number, because the mean of its divisors is an integer number (6445735120).

Almost surely, 2^71113382077 is an apocalyptic number.

It is an amenable number.

71113382077 is a deficient number, since it is larger than the sum of its proper divisors (6235439363).

71113382077 is a wasteful number, since it uses less digits than its factorization.

71113382077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3894784 (or 3894753 counting only the distinct ones).

The product of its (nonzero) digits is 49392, while the sum is 40.

The spelling of 71113382077 in words is "seventy-one billion, one hundred thirteen million, three hundred eighty-two thousand, seventy-seven".