71955550231 has 8 divisors (see below), whose sum is σ = 72533728400. Its totient is φ = 71378236800.

The previous prime is 71955550213. The next prime is 71955550283. The reversal of 71955550231 is 13205555917.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 71955550231 - 2¹⁹ = 71955025943 is a prime.

It is a super-2 number, since 2×71955550231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71955550631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48576 + ... + 382453.

It is an arithmetic number, because the mean of its divisors is an integer number (9066716050).

Almost surely, 2^71955550231 is an apocalyptic number.

71955550231 is a deficient number, since it is larger than the sum of its proper divisors (578178169).

71955550231 is a wasteful number, since it uses less digits than its factorization.

71955550231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432369.

The product of its (nonzero) digits is 236250, while the sum is 43.

The spelling of 71955550231 in words is "seventy-one billion, nine hundred fifty-five million, five hundred fifty thousand, two hundred thirty-one".