25164243468 has 144 divisors (see below), whose sum is σ = 78616073536. Its totient is φ = 6608977920.

The previous prime is 25164243463. The next prime is 25164243479. The reversal of 25164243468 is 86434246152.

25164243468 is a `hidden beast` number, since 2 + 5 + 164 + 24 + 3 + 468 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (25164243463) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 773580 + ... + 805452.

Almost surely, 2^25164243468 is an apocalyptic number.

25164243468 is a gapful number since it is divisible by the number (28) 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 25164243468, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39308036768).

25164243468 is an abundant number, since it is smaller than the sum of its proper divisors (53451830068).

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

25164243468 is a wasteful number, since it uses less digits than its factorization.

25164243468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32144 (or 32139 counting only the distinct ones).

The product of its digits is 1105920, while the sum is 45.

The spelling of 25164243468 in words is "twenty-five billion, one hundred sixty-four million, two hundred forty-three thousand, four hundred sixty-eight".