71578572873 has 8 divisors (see below), whose sum is σ = 97468695168. Its totient is φ = 46703749584.

The previous prime is 71578572829. The next prime is 71578572911. The reversal of 71578572873 is 37827587517.

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

It is not a de Polignac number, because 71578572873 - 2¹⁶ = 71578507337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71578579873) 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, 253824586 + ... + 253824867.

It is an arithmetic number, because the mean of its divisors is an integer number (12183586896).

Almost surely, 2^71578572873 is an apocalyptic number.

It is an amenable number.

71578572873 is a deficient number, since it is larger than the sum of its proper divisors (25890122295).

71578572873 is a wasteful number, since it uses less digits than its factorization.

71578572873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507649503.

The product of its digits is 23049600, while the sum is 60.

The spelling of 71578572873 in words is "seventy-one billion, five hundred seventy-eight million, five hundred seventy-two thousand, eight hundred seventy-three".