73829773829 has 4 divisors (see below), whose sum is σ = 84376884384. Its totient is φ = 63282663276.

The previous prime is 73829773783. The next prime is 73829773847. The reversal of 73829773829 is 92837792837.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-73829773829 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 (73829773529) 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, 5273555267 + ... + 5273555280.

It is an arithmetic number, because the mean of its divisors is an integer number (21094221096).

Almost surely, 2^73829773829 is an apocalyptic number.

It is an amenable number.

73829773829 is a deficient number, since it is larger than the sum of its proper divisors (10547110555).

73829773829 is a wasteful number, since it uses less digits than its factorization.

73829773829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10547110554.

The product of its digits is 64012032, while the sum is 65.

The spelling of 73829773829 in words is "seventy-three billion, eight hundred twenty-nine million, seven hundred seventy-three thousand, eight hundred twenty-nine".