71312990575 has 24 divisors (see below), whose sum is σ = 89258238000. Its totient is φ = 56516866560.

The previous prime is 71312990543. The next prime is 71312990579. The reversal of 71312990575 is 57509921317.

It is not a de Polignac number, because 71312990575 - 2⁵ = 71312990543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71312990579) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 1386519 + ... + 1437031.

It is an arithmetic number, because the mean of its divisors is an integer number (3719093250).

Almost surely, 2^71312990575 is an apocalyptic number.

71312990575 is a deficient number, since it is larger than the sum of its proper divisors (17945247425).

71312990575 is a wasteful number, since it uses less digits than its factorization.

71312990575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51051 (or 51046 counting only the distinct ones).

The product of its (nonzero) digits is 595350, while the sum is 49.

The spelling of 71312990575 in words is "seventy-one billion, three hundred twelve million, nine hundred ninety thousand, five hundred seventy-five".