73144711427 has 4 divisors (see below), whose sum is σ = 73146937440. Its totient is φ = 73142485416.

The previous prime is 73144711319. The next prime is 73144711501. The reversal of 73144711427 is 72411744137.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72411744137 = 17 ⋅4259514361.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73144711427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73144711127) 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, 1062968 + ... + 1129685.

It is an arithmetic number, because the mean of its divisors is an integer number (18286734360).

Almost surely, 2^73144711427 is an apocalyptic number.

73144711427 is a deficient number, since it is larger than the sum of its proper divisors (2226013).

73144711427 is a wasteful number, since it uses less digits than its factorization.

73144711427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2226012.

The product of its digits is 131712, while the sum is 41.

The spelling of 73144711427 in words is "seventy-three billion, one hundred forty-four million, seven hundred eleven thousand, four hundred twenty-seven".