71673454385 has 16 divisors (see below), whose sum is σ = 93740117184. Its totient is φ = 52290397632.

The previous prime is 71673454373. The next prime is 71673454397. The reversal of 71673454385 is 58345437617.

It is an interprime number because it is at equal distance from previous prime (71673454373) and next prime (71673454397).

It is a cyclic number.

It is not a de Polignac number, because 71673454385 - 2²² = 71669260081 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6637187 + ... + 6647976.

It is an arithmetic number, because the mean of its divisors is an integer number (5858757324).

Almost surely, 2^71673454385 is an apocalyptic number.

It is an amenable number.

71673454385 is a deficient number, since it is larger than the sum of its proper divisors (22066662799).

71673454385 is a wasteful number, since it uses less digits than its factorization.

71673454385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13285264.

The product of its digits is 8467200, while the sum is 53.

The spelling of 71673454385 in words is "seventy-one billion, six hundred seventy-three million, four hundred fifty-four thousand, three hundred eighty-five".