71282282497 has 8 divisors (see below), whose sum is σ = 75649673736. Its totient is φ = 66934259712.

The previous prime is 71282282471. The next prime is 71282282507. The reversal of 71282282497 is 79428228217.

It can be written as a sum of positive squares in 4 ways, for example, as 36529936 + 71245752561 = 6044^2 + 266919^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 71282282497 - 2¹⁹ = 71281758209 is a prime.

It is a super-2 number, since 2×71282282497² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (71282282417) 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, 4834528 + ... + 4849249.

It is an arithmetic number, because the mean of its divisors is an integer number (9456209217).

Almost surely, 2^71282282497 is an apocalyptic number.

It is an amenable number.

71282282497 is a deficient number, since it is larger than the sum of its proper divisors (4367391239).

71282282497 is a wasteful number, since it uses less digits than its factorization.

71282282497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9684227.

The product of its digits is 1806336, while the sum is 52.

The spelling of 71282282497 in words is "seventy-one billion, two hundred eighty-two million, two hundred eighty-two thousand, four hundred ninety-seven".