71707450999 has 4 divisors (see below), whose sum is σ = 71708521240. Its totient is φ = 71706380760.

The previous prime is 71707450993. The next prime is 71707451017. The reversal of 71707450999 is 99905470717.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 71707450999 - 2¹¹ = 71707448951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71707450993) 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 3 ways as a sum of consecutive naturals, for example, 427389 + ... + 571030.

It is an arithmetic number, because the mean of its divisors is an integer number (17927130310).

Almost surely, 2^71707450999 is an apocalyptic number.

71707450999 is a deficient number, since it is larger than the sum of its proper divisors (1070241).

71707450999 is an equidigital number, since it uses as much as digits as its factorization.

71707450999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1070240.

The product of its (nonzero) digits is 5000940, while the sum is 58.

The spelling of 71707450999 in words is "seventy-one billion, seven hundred seven million, four hundred fifty thousand, nine hundred ninety-nine".