26251390000 has 100 divisors (see below), whose sum is σ = 69335461800. Its totient is φ = 9545920000.

The previous prime is 26251389949. The next prime is 26251390003. The reversal of 26251390000 is 9315262.

It is a tau number, because it is divible by the number of its divisors (100).

It is not an unprimeable number, because it can be changed into a prime (26251390003) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 9325 + ... + 229324.

It is an arithmetic number, because the mean of its divisors is an integer number (693354618).

Almost surely, 2^26251390000 is an apocalyptic number.

26251390000 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 26251390000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34667730900).

26251390000 is an abundant number, since it is smaller than the sum of its proper divisors (43084071800).

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

26251390000 is a wasteful number, since it uses less digits than its factorization.

26251390000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238688 (or 238667 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 28.

The spelling of 26251390000 in words is "twenty-six billion, two hundred fifty-one million, three hundred ninety thousand".