25766669383744 has 21 divisors (see below), whose sum is σ = 51130815141391. Its totient is φ = 12883314387520.

The previous prime is 25766669383723. The next prime is 25766669383781. The reversal of 25766669383744 is 44738396666752.

The square root of 25766669383744 is 5076088.

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

It is a super-2 number, since 2×25766669383744² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 40291449 + ... + 40925959.

Almost surely, 2^{25766669383744} is an apocalyptic number.

25766669383744 is the 5076088-th square number.

It is an amenable number.

25766669383744 is a deficient number, since it is larger than the sum of its proper divisors (25364145757647).

25766669383744 is an frugal number, since it uses more digits than its factorization.

25766669383744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1269034 (or 634513 counting only the distinct ones).

The product of its digits is 6584094720, while the sum is 76.

The spelling of 25766669383744 in words is "twenty-five trillion, seven hundred sixty-six billion, six hundred sixty-nine million, three hundred eighty-three thousand, seven hundred forty-four".