71245800423 has 60 divisors (see below), whose sum is σ = 123886231392. Its totient is φ = 40685198400.

The previous prime is 71245800421. The next prime is 71245800433. The reversal of 71245800423 is 32400854217.

It is a happy number.

71245800423 is a `hidden beast` number, since 71 + 2 + 4 + 580 + 0 + 4 + 2 + 3 = 666.

It is not a de Polignac number, because 71245800423 - 2¹ = 71245800421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71245800421) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 7143186 + ... + 7153152.

Almost surely, 2^71245800423 is an apocalyptic number.

71245800423 is a deficient number, since it is larger than the sum of its proper divisors (52640430969).

71245800423 is a wasteful number, since it uses less digits than its factorization.

71245800423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11794 (or 11778 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The spelling of 71245800423 in words is "seventy-one billion, two hundred forty-five million, eight hundred thousand, four hundred twenty-three".