25326474140 has 96 divisors (see below), whose sum is σ = 58676825088. Its totient is φ = 9105824000.

The previous prime is 25326474119. The next prime is 25326474157. The reversal of 25326474140 is 4147462352.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 25326474094 and 25326474103.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21444350 + ... + 21445530.

It is an arithmetic number, because the mean of its divisors is an integer number (611216928).

Almost surely, 2^25326474140 is an apocalyptic number.

25326474140 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 25326474140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29338412544).

25326474140 is an abundant number, since it is smaller than the sum of its proper divisors (33350350948).

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

25326474140 is a wasteful number, since it uses less digits than its factorization.

25326474140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2219 (or 2217 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 38.

The spelling of 25326474140 in words is "twenty-five billion, three hundred twenty-six million, four hundred seventy-four thousand, one hundred forty".