71059537147 has 6 divisors (see below), whose sum is σ = 73031972748. Its totient is φ = 69139007784.

The previous prime is 71059537117. The next prime is 71059537183. The reversal of 71059537147 is 74173595017.

It is not a de Polignac number, because 71059537147 - 2¹⁵ = 71059504379 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 71059537147.

It is not an unprimeable number, because it can be changed into a prime (71059537117) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25951713 + ... + 25954450.

It is an arithmetic number, because the mean of its divisors is an integer number (12171995458).

Almost surely, 2^71059537147 is an apocalyptic number.

71059537147 is a deficient number, since it is larger than the sum of its proper divisors (1972435601).

71059537147 is an equidigital number, since it uses as much as digits as its factorization.

71059537147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51906237 (or 51906200 counting only the distinct ones).

The product of its (nonzero) digits is 926100, while the sum is 49.

The spelling of 71059537147 in words is "seventy-one billion, fifty-nine million, five hundred thirty-seven thousand, one hundred forty-seven".