71287022847 has 16 divisors (see below), whose sum is σ = 95491584000. Its totient is φ = 47303690784.

The previous prime is 71287022837. The next prime is 71287022867. The reversal of 71287022847 is 74822078217.

It is not a de Polignac number, because 71287022847 - 2¹⁵ = 71286990079 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 71287022796 and 71287022805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71287022827) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2789554 + ... + 2814992.

It is an arithmetic number, because the mean of its divisors is an integer number (5968224000).

Almost surely, 2^71287022847 is an apocalyptic number.

71287022847 is a deficient number, since it is larger than the sum of its proper divisors (24204561153).

71287022847 is a wasteful number, since it uses less digits than its factorization.

71287022847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29750.

The product of its (nonzero) digits is 702464, while the sum is 48.

The spelling of 71287022847 in words is "seventy-one billion, two hundred eighty-seven million, twenty-two thousand, eight hundred forty-seven".