71623030473 has 6 divisors (see below), whose sum is σ = 103455488474. Its totient is φ = 47748686976.

The previous prime is 71623030433. The next prime is 71623030487. The reversal of 71623030473 is 37403032617.

71623030473 is a `hidden beast` number, since 71 + 62 + 30 + 30 + 473 = 666.

It can be written as a sum of positive squares in only one way, i.e., 61072248384 + 10550782089 = 247128^2 + 102717^2 .

It is not a de Polignac number, because 71623030473 - 2²⁶ = 71555921609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71623030433) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3979057240 + ... + 3979057257.

Almost surely, 2^71623030473 is an apocalyptic number.

It is an amenable number.

71623030473 is a deficient number, since it is larger than the sum of its proper divisors (31832458001).

71623030473 is a wasteful number, since it uses less digits than its factorization.

71623030473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7958114503 (or 7958114500 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 36.

The spelling of 71623030473 in words is "seventy-one billion, six hundred twenty-three million, thirty thousand, four hundred seventy-three".