71249537375 has 16 divisors (see below), whose sum is σ = 88926895200. Its totient is φ = 56994840000.

The previous prime is 71249537351. The next prime is 71249537423. The reversal of 71249537375 is 57373594217.

It is a de Polignac number, because none of the positive numbers 2^k-71249537375 is a prime.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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, 2743451 + ... + 2769299.

It is an arithmetic number, because the mean of its divisors is an integer number (5557930950).

Almost surely, 2^71249537375 is an apocalyptic number.

71249537375 is a deficient number, since it is larger than the sum of its proper divisors (17677357825).

71249537375 is a wasteful number, since it uses less digits than its factorization.

71249537375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47915 (or 47905 counting only the distinct ones).

The product of its digits is 5556600, while the sum is 53.

The spelling of 71249537375 in words is "seventy-one billion, two hundred forty-nine million, five hundred thirty-seven thousand, three hundred seventy-five".