71141308785 has 48 divisors (see below), whose sum is σ = 125835151104. Its totient is φ = 37167801216.

The previous prime is 71141308783. The next prime is 71141308789. The reversal of 71141308785 is 58780314117.

It is not a de Polignac number, because 71141308785 - 2¹ = 71141308783 is a prime.

It is a super-2 number, since 2×71141308785² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 71141308785.

It is not an unprimeable number, because it can be changed into a prime (71141308783) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1520044 + ... + 1566146.

It is an arithmetic number, because the mean of its divisors is an integer number (2621565648).

Almost surely, 2^71141308785 is an apocalyptic number.

It is an amenable number.

71141308785 is a deficient number, since it is larger than the sum of its proper divisors (54693842319).

71141308785 is a wasteful number, since it uses less digits than its factorization.

71141308785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46814 (or 46811 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 45.

The spelling of 71141308785 in words is "seventy-one billion, one hundred forty-one million, three hundred eight thousand, seven hundred eighty-five".