71489140097 has 16 divisors (see below), whose sum is σ = 73590463872. Its totient is φ = 69419306880.

The previous prime is 71489140057. The next prime is 71489140133. The reversal of 71489140097 is 79004198417.

It is a cyclic number.

It is not a de Polignac number, because 71489140097 - 2⁶ = 71489140033 is a prime.

It is a super-2 number, since 2×71489140097² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71489140007) 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, 13648163 + ... + 13653399.

It is an arithmetic number, because the mean of its divisors is an integer number (4599403992).

Almost surely, 2^71489140097 is an apocalyptic number.

It is an amenable number.

71489140097 is a deficient number, since it is larger than the sum of its proper divisors (2101323775).

71489140097 is a wasteful number, since it uses less digits than its factorization.

71489140097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8168.

The product of its (nonzero) digits is 508032, while the sum is 50.

The spelling of 71489140097 in words is "seventy-one billion, four hundred eighty-nine million, one hundred forty thousand, ninety-seven".