73735557923 has 4 divisors (see below), whose sum is σ = 73736240088. Its totient is φ = 73734875760.

The previous prime is 73735557919. The next prime is 73735557949. The reversal of 73735557923 is 32975553737.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 73735557923 - 2² = 73735557919 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73735557983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139061 + ... + 408422.

It is an arithmetic number, because the mean of its divisors is an integer number (18434060022).

Almost surely, 2^73735557923 is an apocalyptic number.

73735557923 is a deficient number, since it is larger than the sum of its proper divisors (682165).

73735557923 is a wasteful number, since it uses less digits than its factorization.

73735557923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682164.

The product of its digits is 20837250, while the sum is 56.

The spelling of 73735557923 in words is "seventy-three billion, seven hundred thirty-five million, five hundred fifty-seven thousand, nine hundred twenty-three".