71430859431 has 6 divisors (see below), whose sum is σ = 103177908080. Its totient is φ = 47620572948.

The previous prime is 71430859429. The next prime is 71430859441. The reversal of 71430859431 is 13495803417.

It is not a de Polignac number, because 71430859431 - 2¹ = 71430859429 is a prime.

It is a super-2 number, since 2×71430859431² (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 (71430859421) 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 5 ways as a sum of consecutive naturals, for example, 3968381071 + ... + 3968381088.

Almost surely, 2^71430859431 is an apocalyptic number.

71430859431 is a deficient number, since it is larger than the sum of its proper divisors (31747048649).

71430859431 is a wasteful number, since it uses less digits than its factorization.

71430859431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7936762165 (or 7936762162 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The spelling of 71430859431 in words is "seventy-one billion, four hundred thirty million, eight hundred fifty-nine thousand, four hundred thirty-one".