71450087511 has 12 divisors (see below), whose sum is σ = 104714729336. Its totient is φ = 43303083120.

The previous prime is 71450087497. The next prime is 71450087551. The reversal of 71450087511 is 11578005417.

It is not a de Polignac number, because 71450087511 - 2⁶ = 71450087447 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 71450087511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71450087551) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 98415736 + ... + 98416461.

Almost surely, 2^71450087511 is an apocalyptic number.

71450087511 is a deficient number, since it is larger than the sum of its proper divisors (33264641825).

71450087511 is a wasteful number, since it uses less digits than its factorization.

71450087511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196832222 (or 196832211 counting only the distinct ones).

The product of its (nonzero) digits is 39200, while the sum is 39.

It can be divided in two parts, 714500 and 87511, that added together give a triangular number (802011 = T₁₂₆₆).

The spelling of 71450087511 in words is "seventy-one billion, four hundred fifty million, eighty-seven thousand, five hundred eleven".