71436874631 has 2 divisors, whose sum is σ = 71436874632. Its totient is φ = 71436874630.

The previous prime is 71436874609. The next prime is 71436874637. The reversal of 71436874631 is 13647863417.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 71436874631 - 2¹⁸ = 71436612487 is a prime.

It is a super-2 number, since 2×71436874631² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 71436874631.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71436874637) 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 as a sum of consecutive naturals, namely, 35718437315 + 35718437316.

It is an arithmetic number, because the mean of its divisors is an integer number (35718437316).

Almost surely, 2^71436874631 is an apocalyptic number.

71436874631 is a deficient number, since it is larger than the sum of its proper divisors (1).

71436874631 is an equidigital number, since it uses as much as digits as its factorization.

71436874631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2032128, while the sum is 50.

The spelling of 71436874631 in words is "seventy-one billion, four hundred thirty-six million, eight hundred seventy-four thousand, six hundred thirty-one".