20729000378328 has 128 divisors (see below), whose sum is σ = 59647170355200. Its totient is φ = 5937101366400.

The previous prime is 20729000378323. The next prime is 20729000378371. The reversal of 20729000378328 is 82387300092702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20729000378323) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2632276 + ... + 6956067.

It is an arithmetic number, because the mean of its divisors is an integer number (465993518400).

Almost surely, 2^{20729000378328} is an apocalyptic number.

It is an amenable number.

20729000378328 is an abundant number, since it is smaller than the sum of its proper divisors (38918169976872).

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

20729000378328 is a wasteful number, since it uses less digits than its factorization.

20729000378328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9588813 (or 9588809 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 51.

The spelling of 20729000378328 in words is "twenty trillion, seven hundred twenty-nine billion, three hundred seventy-eight thousand, three hundred twenty-eight".