71404572489 has 8 divisors (see below), whose sum is σ = 96079547520. Its totient is φ = 47166322896.

The previous prime is 71404572457. The next prime is 71404572497. The reversal of 71404572489 is 98427540417.

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

It is not a de Polignac number, because 71404572489 - 2⁵ = 71404572457 is a prime.

It is a super-2 number, since 2×71404572489² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (71404572289) 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, 109180977 + ... + 109181630.

It is an arithmetic number, because the mean of its divisors is an integer number (12009943440).

Almost surely, 2^71404572489 is an apocalyptic number.

It is an amenable number.

71404572489 is a deficient number, since it is larger than the sum of its proper divisors (24674975031).

71404572489 is a wasteful number, since it uses less digits than its factorization.

71404572489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218362719.

The product of its (nonzero) digits is 2257920, while the sum is 51.

The spelling of 71404572489 in words is "seventy-one billion, four hundred four million, five hundred seventy-two thousand, four hundred eighty-nine".