25773704478720 has 768 divisors, whose sum is σ = 100019044944000. Its totient is φ = 6245150883840.

The previous prime is 25773704478689. The next prime is 25773704478773. The reversal of 25773704478720 is 2787440737752.

It is a happy number.

25773704478720 is a `hidden beast` number, since 2 + 5 + 7 + 73 + 70 + 4 + 478 + 7 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (768).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12457081846 + ... + 12457083914.

Almost surely, 2^{25773704478720} is an apocalyptic number.

25773704478720 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 25773704478720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50009522472000).

25773704478720 is an abundant number, since it is smaller than the sum of its proper divisors (74245340465280).

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

25773704478720 is an frugal number, since it uses more digits than its factorization.

25773704478720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2140 (or 2090 counting only the distinct ones).

The product of its (nonzero) digits is 129077760, while the sum is 63.

The spelling of 25773704478720 in words is "twenty-five trillion, seven hundred seventy-three billion, seven hundred four million, four hundred seventy-eight thousand, seven hundred twenty".