25780234475776 has 243 divisors, whose sum is σ = 60121609093987. Its totient is φ = 11022478213120.

The previous prime is 25780234475773. The next prime is 25780234475797. The reversal of 25780234475776 is 67757443208752.

The square root of 25780234475776 is 5077424.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 15474593618176 + 10305640857600 = 3933776^2 + 3210240^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25780234475773) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 15191651760 + ... + 15191653456.

Almost surely, 2^{25780234475776} is an apocalyptic number.

25780234475776 is the 5077424-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25780234475776

25780234475776 is an abundant number, since it is smaller than the sum of its proper divisors (34341374618211).

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

25780234475776 is an frugal number, since it uses more digits than its factorization.

25780234475776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3466 (or 1727 counting only the distinct ones).

The product of its (nonzero) digits is 553190400, while the sum is 67.

The spelling of 25780234475776 in words is "twenty-five trillion, seven hundred eighty billion, two hundred thirty-four million, four hundred seventy-five thousand, seven hundred seventy-six".