71219634725 has 24 divisors (see below), whose sum is σ = 90437357472. Its totient is φ = 55606824000.

The previous prime is 71219634691. The next prime is 71219634823. The reversal of 71219634725 is 52743691217.

It is not a de Polignac number, because 71219634725 - 2¹⁰ = 71219633701 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 71219634725.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1373114 + ... + 1424036.

It is an arithmetic number, because the mean of its divisors is an integer number (3768223228).

Almost surely, 2^71219634725 is an apocalyptic number.

It is an amenable number.

71219634725 is a deficient number, since it is larger than the sum of its proper divisors (19217722747).

71219634725 is a wasteful number, since it uses less digits than its factorization.

71219634725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52277 (or 52272 counting only the distinct ones).

The product of its digits is 635040, while the sum is 47.

The spelling of 71219634725 in words is "seventy-one billion, two hundred nineteen million, six hundred thirty-four thousand, seven hundred twenty-five".