71452644611 has 4 divisors (see below), whose sum is σ = 71492101224. Its totient is φ = 71413188000.

The previous prime is 71452644577. The next prime is 71452644643. The reversal of 71452644611 is 11644625417.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 71452644611 - 2⁶ = 71452644547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71452644311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19725590 + ... + 19729211.

It is an arithmetic number, because the mean of its divisors is an integer number (17873025306).

Almost surely, 2^71452644611 is an apocalyptic number.

71452644611 is a deficient number, since it is larger than the sum of its proper divisors (39456613).

71452644611 is a wasteful number, since it uses less digits than its factorization.

71452644611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39456612.

The product of its digits is 161280, while the sum is 41.

The spelling of 71452644611 in words is "seventy-one billion, four hundred fifty-two million, six hundred forty-four thousand, six hundred eleven".