20378792050428 has 96 divisors (see below), whose sum is σ = 55270743091200. Its totient is φ = 5723180922816.

The previous prime is 20378792050423. The next prime is 20378792050429. The reversal of 20378792050428 is 82405029787302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20378792050423) 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, 44669451 + ... + 45123357.

It is an arithmetic number, because the mean of its divisors is an integer number (575736907200).

Almost surely, 2^{20378792050428} is an apocalyptic number.

20378792050428 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20378792050428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27635371545600).

20378792050428 is an abundant number, since it is smaller than the sum of its proper divisors (34891951040772).

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

20378792050428 is a wasteful number, since it uses less digits than its factorization.

20378792050428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463039 (or 463037 counting only the distinct ones).

The product of its (nonzero) digits is 13547520, while the sum is 57.

The spelling of 20378792050428 in words is "twenty trillion, three hundred seventy-eight billion, seven hundred ninety-two million, fifty thousand, four hundred twenty-eight".