25778014459248 has 80 divisors (see below), whose sum is σ = 67408380198656. Its totient is φ = 8487826237440.

The previous prime is 25778014459243. The next prime is 25778014459313. The reversal of 25778014459248 is 84295441087752.

It is a super-2 number, since 2×25778014459248² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25778014459243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2857948 + ... + 7728123.

Almost surely, 2^{25778014459248} is an apocalyptic number.

It is an amenable number.

25778014459248 is an abundant number, since it is smaller than the sum of its proper divisors (41630365739408).

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

25778014459248 is a wasteful number, since it uses less digits than its factorization.

25778014459248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10586702 (or 10586696 counting only the distinct ones).

The product of its (nonzero) digits is 180633600, while the sum is 66.

The spelling of 25778014459248 in words is "twenty-five trillion, seven hundred seventy-eight billion, fourteen million, four hundred fifty-nine thousand, two hundred forty-eight".