71449532575 has 6 divisors (see below), whose sum is σ = 88597420424. Its totient is φ = 57159626040.

The previous prime is 71449532573. The next prime is 71449532603. The reversal of 71449532575 is 57523594417.

It is not a de Polignac number, because 71449532575 - 2¹ = 71449532573 is a prime.

It is a super-2 number, since 2×71449532575² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71449532573) 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, 1428990627 + ... + 1428990676.

Almost surely, 2^71449532575 is an apocalyptic number.

71449532575 is a deficient number, since it is larger than the sum of its proper divisors (17147887849).

71449532575 is a wasteful number, since it uses less digits than its factorization.

71449532575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2857981313 (or 2857981308 counting only the distinct ones).

The product of its digits is 5292000, while the sum is 52.

The spelling of 71449532575 in words is "seventy-one billion, four hundred forty-nine million, five hundred thirty-two thousand, five hundred seventy-five".