71734931886 has 16 divisors (see below), whose sum is σ = 149707684224. Its totient is φ = 22872007224.

The previous prime is 71734931881. The next prime is 71734931887. The reversal of 71734931886 is 68813943717.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71734931881) 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 7 ways as a sum of consecutive naturals, for example, 259909036 + ... + 259909311.

It is an arithmetic number, because the mean of its divisors is an integer number (9356730264).

Almost surely, 2^71734931886 is an apocalyptic number.

71734931886 is an abundant number, since it is smaller than the sum of its proper divisors (77972752338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71734931886 is a wasteful number, since it uses less digits than its factorization.

71734931886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519818375.

The product of its digits is 6096384, while the sum is 57.

The spelling of 71734931886 in words is "seventy-one billion, seven hundred thirty-four million, nine hundred thirty-one thousand, eight hundred eighty-six".