71137370887 has 8 divisors (see below), whose sum is σ = 80978509440. Its totient is φ = 61858583160.

The previous prime is 71137370879. The next prime is 71137370891. The reversal of 71137370887 is 78807373117.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 71137370887 - 2³ = 71137370879 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 (71137370687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140587437 + ... + 140587942.

It is an arithmetic number, because the mean of its divisors is an integer number (10122313680).

Almost surely, 2^71137370887 is an apocalyptic number.

71137370887 is a deficient number, since it is larger than the sum of its proper divisors (9841138553).

71137370887 is a wasteful number, since it uses less digits than its factorization.

71137370887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281175413.

The product of its (nonzero) digits is 1382976, while the sum is 52.

The spelling of 71137370887 in words is "seventy-one billion, one hundred thirty-seven million, three hundred seventy thousand, eight hundred eighty-seven".