71872195855 has 16 divisors (see below), whose sum is σ = 87533750304. Its totient is φ = 56645619840.

The previous prime is 71872195711. The next prime is 71872195883. The reversal of 71872195855 is 55859127817.

It is not a de Polignac number, because 71872195855 - 2¹¹ = 71872193807 is a prime.

It is a super-2 number, since 2×71872195855² (a number of 23 digits) contains 22 as substring.

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 71872195855.

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, 274272 + ... + 467941.

It is an arithmetic number, because the mean of its divisors is an integer number (5470859394).

Almost surely, 2^71872195855 is an apocalyptic number.

71872195855 is a deficient number, since it is larger than the sum of its proper divisors (15661554449).

71872195855 is a wasteful number, since it uses less digits than its factorization.

71872195855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 742506.

The product of its digits is 7056000, while the sum is 58.

The spelling of 71872195855 in words is "seventy-one billion, eight hundred seventy-two million, one hundred ninety-five thousand, eight hundred fifty-five".