71860900859 has 16 divisors (see below), whose sum is σ = 80515620864. Its totient is φ = 63568161600.

The previous prime is 71860900849. The next prime is 71860900861. The reversal of 71860900859 is 95800906817.

It is a cyclic number.

It is not a de Polignac number, because 71860900859 - 2⁴ = 71860900843 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 71860900859.

It is not an unprimeable number, because it can be changed into a prime (71860900829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35279 + ... + 380744.

It is an arithmetic number, because the mean of its divisors is an integer number (5032226304).

Almost surely, 2^71860900859 is an apocalyptic number.

71860900859 is a deficient number, since it is larger than the sum of its proper divisors (8654720005).

71860900859 is a wasteful number, since it uses less digits than its factorization.

71860900859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416458.

The product of its (nonzero) digits is 1088640, while the sum is 53.

The spelling of 71860900859 in words is "seventy-one billion, eight hundred sixty million, nine hundred thousand, eight hundred fifty-nine".