71027451231 has 8 divisors (see below), whose sum is σ = 103312656384. Its totient is φ = 43046940120.

The previous prime is 71027451223. The next prime is 71027451241. The reversal of 71027451231 is 13215472017.

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

It is not a de Polignac number, because 71027451231 - 2³ = 71027451223 is a prime.

It is a super-2 number, since 2×71027451231² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 2152347007 = 71027451231 / (7 + 1 + 0 + 2 + 7 + 4 + 5 + 1 + 2 + 3 + 1).

It is a junction number, because it is equal to n+sod(n) for n = 71027451192 and 71027451201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71027451211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1076173471 + ... + 1076173536.

It is an arithmetic number, because the mean of its divisors is an integer number (12914082048).

Almost surely, 2^71027451231 is an apocalyptic number.

71027451231 is a deficient number, since it is larger than the sum of its proper divisors (32285205153).

71027451231 is a wasteful number, since it uses less digits than its factorization.

71027451231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2152347021.

The product of its (nonzero) digits is 11760, while the sum is 33.

The spelling of 71027451231 in words is "seventy-one billion, twenty-seven million, four hundred fifty-one thousand, two hundred thirty-one".