71861816801095 has 16 divisors (see below), whose sum is σ = 86343780005280. Its totient is φ = 57416392252800.

The previous prime is 71861816801039. The next prime is 71861816801153. The reversal of 71861816801095 is 59010861816817.

It is not a de Polignac number, because 71861816801095 - 2¹⁵ = 71861816768327 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111357021 + ... + 112000489.

It is an arithmetic number, because the mean of its divisors is an integer number (5396486250330).

Almost surely, 2^{71861816801095} is an apocalyptic number.

71861816801095 is a deficient number, since it is larger than the sum of its proper divisors (14481963204185).

71861816801095 is a wasteful number, since it uses less digits than its factorization.

71861816801095 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671826.

The product of its (nonzero) digits is 5806080, while the sum is 61.

The spelling of 71861816801095 in words is "seventy-one trillion, eight hundred sixty-one billion, eight hundred sixteen million, eight hundred one thousand, ninety-five".