73734647743 has 4 divisors (see below), whose sum is σ = 73835241448. Its totient is φ = 73634054040.

The previous prime is 73734647687. The next prime is 73734647759. The reversal of 73734647743 is 34774643737.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34774643737 = 349 ⋅99640813.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73734647743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73734647443) 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, 50295753 + ... + 50297218.

It is an arithmetic number, because the mean of its divisors is an integer number (18458810362).

Almost surely, 2^73734647743 is an apocalyptic number.

73734647743 is a deficient number, since it is larger than the sum of its proper divisors (100593705).

73734647743 is a wasteful number, since it uses less digits than its factorization.

73734647743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100593704.

The product of its digits is 24893568, while the sum is 55.

The spelling of 73734647743 in words is "seventy-three billion, seven hundred thirty-four million, six hundred forty-seven thousand, seven hundred forty-three".