71501000873 has 2 divisors, whose sum is σ = 71501000874. Its totient is φ = 71501000872.

The previous prime is 71501000833. The next prime is 71501000897. The reversal of 71501000873 is 37800010517.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54080432704 + 17420568169 = 232552^2 + 131987^2 .

It is a cyclic number.

It is not a de Polignac number, because 71501000873 - 2⁸ = 71501000617 is a prime.

It is a super-2 number, since 2×71501000873² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (71501000833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35750500436 + 35750500437.

It is an arithmetic number, because the mean of its divisors is an integer number (35750500437).

Almost surely, 2^71501000873 is an apocalyptic number.

It is an amenable number.

71501000873 is a deficient number, since it is larger than the sum of its proper divisors (1).

71501000873 is an equidigital number, since it uses as much as digits as its factorization.

71501000873 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5880, while the sum is 32.

The spelling of 71501000873 in words is "seventy-one billion, five hundred one million, eight hundred seventy-three", and thus it is an aban number.