26254851840 has 576 divisors, whose sum is σ = 109116241920. Its totient is φ = 5852528640.

The previous prime is 26254851823. The next prime is 26254851971. The reversal of 26254851840 is 4815845262.

26254851840 is a `hidden beast` number, since 2 + 62 + 548 + 5 + 1 + 8 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (576).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9917397 + ... + 9920043.

It is an arithmetic number, because the mean of its divisors is an integer number (189437920).

Almost surely, 2^26254851840 is an apocalyptic number.

26254851840 is a gapful number since it is divisible by the number (20) 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 26254851840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54558120960).

26254851840 is an abundant number, since it is smaller than the sum of its proper divisors (82861390080).

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

26254851840 is a wasteful number, since it uses less digits than its factorization.

26254851840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2725 (or 2705 counting only the distinct ones).

The product of its (nonzero) digits is 614400, while the sum is 45.

The spelling of 26254851840 in words is "twenty-six billion, two hundred fifty-four million, eight hundred fifty-one thousand, eight hundred forty".