71436428723 has 8 divisors (see below), whose sum is σ = 77932656576. Its totient is φ = 64940535400.

The previous prime is 71436428719. The next prime is 71436428743. The reversal of 71436428723 is 32782463417.

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

It is a cyclic number.

It is not a de Polignac number, because 71436428723 - 2² = 71436428719 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71436428743) 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, 621128 + ... + 727098.

It is an arithmetic number, because the mean of its divisors is an integer number (9741582072).

Almost surely, 2^71436428723 is an apocalyptic number.

71436428723 is a deficient number, since it is larger than the sum of its proper divisors (6496227853).

71436428723 is a wasteful number, since it uses less digits than its factorization.

71436428723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167265.

The product of its digits is 1354752, while the sum is 47.

The spelling of 71436428723 in words is "seventy-one billion, four hundred thirty-six million, four hundred twenty-eight thousand, seven hundred twenty-three".