71577870495 has 32 divisors (see below), whose sum is σ = 114741833472. Its totient is φ = 38102537472.

The previous prime is 71577870461. The next prime is 71577870523. The reversal of 71577870495 is 59407877517.

It is not a de Polignac number, because 71577870495 - 2¹¹ = 71577868447 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25534764 + ... + 25537566.

It is an arithmetic number, because the mean of its divisors is an integer number (3585682296).

Almost surely, 2^71577870495 is an apocalyptic number.

71577870495 is a deficient number, since it is larger than the sum of its proper divisors (43163962977).

71577870495 is a wasteful number, since it uses less digits than its factorization.

71577870495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5431.

The product of its (nonzero) digits is 17287200, while the sum is 60.

The spelling of 71577870495 in words is "seventy-one billion, five hundred seventy-seven million, eight hundred seventy thousand, four hundred ninety-five".