25443874368 has 168 divisors, whose sum is σ = 79702249536. Its totient is φ = 7696512000.

The previous prime is 25443874367. The next prime is 25443874369. The reversal of 25443874368 is 86347834452.

25443874368 is a `hidden beast` number, since 2 + 544 + 38 + 7 + 4 + 3 + 68 = 666.

It is an interprime number because it is at equal distance from previous prime (25443874367) and next prime (25443874369).

It is not an unprimeable number, because it can be changed into a prime (25443874367) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3880693 + ... + 3887243.

It is an arithmetic number, because the mean of its divisors is an integer number (474418152).

Almost surely, 2^25443874368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25443874368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39851124768).

25443874368 is an abundant number, since it is smaller than the sum of its proper divisors (54258375168).

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

25443874368 is a wasteful number, since it uses less digits than its factorization.

25443874368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7193 (or 7180 counting only the distinct ones).

The product of its digits is 15482880, while the sum is 54.

It can be divided in two parts, 25443 and 874368, that added together give a triangular number (899811 = T₁₃₄₁).

The spelling of 25443874368 in words is "twenty-five billion, four hundred forty-three million, eight hundred seventy-four thousand, three hundred sixty-eight".