71224657275 has 24 divisors (see below), whose sum is σ = 118368269680. Its totient is φ = 37789655040.

The previous prime is 71224657261. The next prime is 71224657289. The reversal of 71224657275 is 57275642217.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (71224657261) and next prime (71224657289).

It is not a de Polignac number, because 71224657275 - 2¹⁵ = 71224624507 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2445790 + ... + 2474739.

Almost surely, 2^71224657275 is an apocalyptic number.

71224657275 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

71224657275 is a deficient number, since it is larger than the sum of its proper divisors (47143612405).

71224657275 is a wasteful number, since it uses less digits than its factorization.

71224657275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4920735 (or 4920730 counting only the distinct ones).

The product of its digits is 1646400, while the sum is 48.

The spelling of 71224657275 in words is "seventy-one billion, two hundred twenty-four million, six hundred fifty-seven thousand, two hundred seventy-five".