71292048065 has 16 divisors (see below), whose sum is σ = 101143399680. Its totient is φ = 47200251840.

The previous prime is 71292048019. The next prime is 71292048133. The reversal of 71292048065 is 56084029217.

It is a happy number.

It is not a de Polignac number, because 71292048065 - 2⁶ = 71292048001 is a prime.

It is a super-2 number, since 2×71292048065² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35118221 + ... + 35120250.

It is an arithmetic number, because the mean of its divisors is an integer number (6321462480).

Almost surely, 2^71292048065 is an apocalyptic number.

It is an amenable number.

71292048065 is a deficient number, since it is larger than the sum of its proper divisors (29851351615).

71292048065 is a wasteful number, since it uses less digits than its factorization.

71292048065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70238512.

The product of its (nonzero) digits is 241920, while the sum is 44.

The spelling of 71292048065 in words is "seventy-one billion, two hundred ninety-two million, forty-eight thousand, sixty-five".