71854070189 has 16 divisors (see below), whose sum is σ = 80519757696. Its totient is φ = 63544622400.

The previous prime is 71854070179. The next prime is 71854070213. The reversal of 71854070189 is 98107045817.

It is a cyclic number.

It is not a de Polignac number, because 71854070189 - 2¹⁶ = 71854004653 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 (71854070149) 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 15 ways as a sum of consecutive naturals, for example, 2750939 + ... + 2776935.

It is an arithmetic number, because the mean of its divisors is an integer number (5032484856).

Almost surely, 2^71854070189 is an apocalyptic number.

It is an amenable number.

71854070189 is a deficient number, since it is larger than the sum of its proper divisors (8665687507).

71854070189 is a wasteful number, since it uses less digits than its factorization.

71854070189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32836.

The product of its (nonzero) digits is 564480, while the sum is 50.

The spelling of 71854070189 in words is "seventy-one billion, eight hundred fifty-four million, seventy thousand, one hundred eighty-nine".