71680037959 has 4 divisors (see below), whose sum is σ = 73992297280. Its totient is φ = 69367778640.

The previous prime is 71680037921. The next prime is 71680037981. The reversal of 71680037959 is 95973008617.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95973008617 = 59 ⋅1626661163.

It is a cyclic number.

It is not a de Polignac number, because 71680037959 - 2¹³ = 71680029767 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 (71686037959) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1156129614 + ... + 1156129675.

It is an arithmetic number, because the mean of its divisors is an integer number (18498074320).

Almost surely, 2^71680037959 is an apocalyptic number.

71680037959 is a deficient number, since it is larger than the sum of its proper divisors (2312259321).

71680037959 is a wasteful number, since it uses less digits than its factorization.

71680037959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2312259320.

The product of its (nonzero) digits is 2857680, while the sum is 55.

The spelling of 71680037959 in words is "seventy-one billion, six hundred eighty million, thirty-seven thousand, nine hundred fifty-nine".