71463173257 has 8 divisors (see below), whose sum is σ = 82822511232. Its totient is φ = 60391413600.

The previous prime is 71463173239. The next prime is 71463173263. The reversal of 71463173257 is 75237136417.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 71463173257 - 2⁷ = 71463173129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71463177257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71894044 + ... + 71895037.

It is an arithmetic number, because the mean of its divisors is an integer number (10352813904).

Almost surely, 2^71463173257 is an apocalyptic number.

It is an amenable number.

71463173257 is a deficient number, since it is larger than the sum of its proper divisors (11359337975).

71463173257 is a wasteful number, since it uses less digits than its factorization.

71463173257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143789159.

The product of its digits is 740880, while the sum is 46.

The spelling of 71463173257 in words is "seventy-one billion, four hundred sixty-three million, one hundred seventy-three thousand, two hundred fifty-seven".