729373785738 has 32 divisors (see below), whose sum is σ = 1572691114176. Its totient is φ = 224175247488.

The previous prime is 729373785719. The next prime is 729373785743. The reversal of 729373785738 is 837587373927.

It is a super-2 number, since 2×729373785738² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5084131 + ... + 5225622.

It is an arithmetic number, because the mean of its divisors is an integer number (49146597318).

Almost surely, 2^729373785738 is an apocalyptic number.

729373785738 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

729373785738 is an abundant number, since it is smaller than the sum of its proper divisors (843317328438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

729373785738 is a wasteful number, since it uses less digits than its factorization.

729373785738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10310678.

The product of its digits is 373403520, while the sum is 69.

The spelling of 729373785738 in words is "seven hundred twenty-nine billion, three hundred seventy-three million, seven hundred eighty-five thousand, seven hundred thirty-eight".