25787851622016 has 128 divisors (see below), whose sum is σ = 74729419128000. Its totient is φ = 7814159769600.

The previous prime is 25787851622011. The next prime is 25787851622033. The reversal of 25787851622016 is 61022615878752.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×25787851622016² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25787851622011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106953756 + ... + 107194596.

Almost surely, 2^{25787851622016} is an apocalyptic number.

It is an amenable number.

25787851622016 is an abundant number, since it is smaller than the sum of its proper divisors (48941567505984).

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

25787851622016 is a wasteful number, since it uses less digits than its factorization.

25787851622016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266218 (or 266206 counting only the distinct ones).

The product of its (nonzero) digits is 22579200, while the sum is 60.

The spelling of 25787851622016 in words is "twenty-five trillion, seven hundred eighty-seven billion, eight hundred fifty-one million, six hundred twenty-two thousand, sixteen".