71943209034 has 16 divisors (see below), whose sum is σ = 151459387680. Its totient is φ = 22718908080.

The previous prime is 71943209011. The next prime is 71943209059. The reversal of 71943209034 is 43090234917.

It is a super-2 number, since 2×71943209034² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 315540277 + ... + 315540504.

It is an arithmetic number, because the mean of its divisors is an integer number (9466211730).

Almost surely, 2^71943209034 is an apocalyptic number.

71943209034 is an abundant number, since it is smaller than the sum of its proper divisors (79516178646).

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

71943209034 is a wasteful number, since it uses less digits than its factorization.

71943209034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631080805.

The product of its (nonzero) digits is 163296, while the sum is 42.

The spelling of 71943209034 in words is "seventy-one billion, nine hundred forty-three million, two hundred nine thousand, thirty-four".