71431156468 has 24 divisors (see below), whose sum is σ = 143890107200. Its totient is φ = 30393111168.

The previous prime is 71431156463. The next prime is 71431156487. The reversal of 71431156468 is 86465113417.

It is a super-2 number, since 2×71431156468² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71431156463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9172773 + ... + 9180556.

Almost surely, 2^71431156468 is an apocalyptic number.

It is an amenable number.

71431156468 is an abundant number, since it is smaller than the sum of its proper divisors (72458950732).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71431156468 is a wasteful number, since it uses less digits than its factorization.

71431156468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18353479 (or 18353477 counting only the distinct ones).

The product of its digits is 483840, while the sum is 46.

It can be divided in two parts, 7143 and 1156468, that added together give a palindrome (1163611).

The spelling of 71431156468 in words is "seventy-one billion, four hundred thirty-one million, one hundred fifty-six thousand, four hundred sixty-eight".