71613820734 has 32 divisors (see below), whose sum is σ = 143944770816. Its totient is φ = 23751813120.

The previous prime is 71613820709. The next prime is 71613820787. The reversal of 71613820734 is 43702831617.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9018814 + ... + 9026750.

It is an arithmetic number, because the mean of its divisors is an integer number (4498274088).

Almost surely, 2^71613820734 is an apocalyptic number.

71613820734 is an abundant number, since it is smaller than the sum of its proper divisors (72330950082).

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

71613820734 is a wasteful number, since it uses less digits than its factorization.

71613820734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15280.

The product of its (nonzero) digits is 169344, while the sum is 42.

The spelling of 71613820734 in words is "seventy-one billion, six hundred thirteen million, eight hundred twenty thousand, seven hundred thirty-four".