71840225811 has 8 divisors (see below), whose sum is σ = 95913505744. Its totient is φ = 47830214880.

The previous prime is 71840225791. The next prime is 71840225839. The reversal of 71840225811 is 11852204817.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 71840225811 - 2²⁷ = 71706008083 is a prime.

It is a super-2 number, since 2×71840225811² (a number of 23 digits) contains 22 as substring.

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 71840225811.

It is not an unprimeable number, because it can be changed into a prime (71840225711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15814600 + ... + 15819141.

It is an arithmetic number, because the mean of its divisors is an integer number (11989188218).

Almost surely, 2^71840225811 is an apocalyptic number.

71840225811 is a deficient number, since it is larger than the sum of its proper divisors (24073279933).

71840225811 is a wasteful number, since it uses less digits than its factorization.

71840225811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31634501.

The product of its (nonzero) digits is 35840, while the sum is 39.

The spelling of 71840225811 in words is "seventy-one billion, eight hundred forty million, two hundred twenty-five thousand, eight hundred eleven".