73735721346723 has 4 divisors (see below), whose sum is σ = 98314295128968. Its totient is φ = 49157147564480.

The previous prime is 73735721346713. The next prime is 73735721346773. The reversal of 73735721346723 is 32764312753737.

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 73735721346723 - 2¹² = 73735721342627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (73735721346713) 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, 12289286891118 + ... + 12289286891123.

It is an arithmetic number, because the mean of its divisors is an integer number (24578573782242).

Almost surely, 2^{73735721346723} is an apocalyptic number.

73735721346723 is a deficient number, since it is larger than the sum of its proper divisors (24578573782245).

73735721346723 is a wasteful number, since it uses less digits than its factorization.

73735721346723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24578573782244.

The product of its digits is 93350880, while the sum is 60.

The spelling of 73735721346723 in words is "seventy-three trillion, seven hundred thirty-five billion, seven hundred twenty-one million, three hundred forty-six thousand, seven hundred twenty-three".