20794034257920 has 5376 divisors, whose sum is σ = 105828665227200. Its totient is φ = 3852635996160.

The previous prime is 20794034257877. The next prime is 20794034257949. The reversal of 20794034257920 is 2975243049702.

It is a happy number.

20794034257920 is a `hidden beast` number, since 2 + 0 + 7 + 9 + 4 + 0 + 3 + 42 + 579 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (5376).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 335 ways as a sum of consecutive naturals, for example, 1094422855671 + ... + 1094422855689.

Almost surely, 2^{20794034257920} is an apocalyptic number.

20794034257920 is a gapful number since it is divisible by the number (20) 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 20794034257920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52914332613600).

20794034257920 is an abundant number, since it is smaller than the sum of its proper divisors (85034630969280).

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

20794034257920 is an equidigital number, since it uses as much as digits as its factorization.

20794034257920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114 (or 64 counting only the distinct ones).

The product of its (nonzero) digits is 7620480, while the sum is 54.

The spelling of 20794034257920 in words is "twenty trillion, seven hundred ninety-four billion, thirty-four million, two hundred fifty-seven thousand, nine hundred twenty".