71500223867 has 2 divisors, whose sum is σ = 71500223868. Its totient is φ = 71500223866.

The previous prime is 71500223849. The next prime is 71500223887. The reversal of 71500223867 is 76832200517.

It is a weak prime.

It is an emirp because it is prime and its reverse (76832200517) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 71500223867 - 2¹⁴ = 71500207483 is a prime.

It is a super-2 number, since 2×71500223867² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (71500223887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35750111933 + 35750111934.

It is an arithmetic number, because the mean of its divisors is an integer number (35750111934).

Almost surely, 2^71500223867 is an apocalyptic number.

71500223867 is a deficient number, since it is larger than the sum of its proper divisors (1).

71500223867 is an equidigital number, since it uses as much as digits as its factorization.

71500223867 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 141120, while the sum is 41.

The spelling of 71500223867 in words is "seventy-one billion, five hundred million, two hundred twenty-three thousand, eight hundred sixty-seven".