71172003587 has 2 divisors, whose sum is σ = 71172003588. Its totient is φ = 71172003586.

The previous prime is 71172003559. The next prime is 71172003601. The reversal of 71172003587 is 78530027117.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71172003587 is a prime.

It is not a weakly prime, because it can be changed into another prime (71172005587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35586001793 + 35586001794.

It is an arithmetic number, because the mean of its divisors is an integer number (35586001794).

Almost surely, 2^71172003587 is an apocalyptic number.

71172003587 is a deficient number, since it is larger than the sum of its proper divisors (1).

71172003587 is an equidigital number, since it uses as much as digits as its factorization.

71172003587 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82320, while the sum is 41.

The spelling of 71172003587 in words is "seventy-one billion, one hundred seventy-two million, three thousand, five hundred eighty-seven".