26551453500 has 720 divisors, whose sum is σ = 102424707840. Its totient is φ = 5749920000.

The previous prime is 26551453477. The next prime is 26551453627. The reversal of 26551453500 is 535415562.

26551453500 is a `hidden beast` number, since 2 + 6 + 5 + 5 + 145 + 3 + 500 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 856498485 + ... + 856498515.

Almost surely, 2^26551453500 is an apocalyptic number.

26551453500 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 26551453500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51212353920).

26551453500 is an abundant number, since it is smaller than the sum of its proper divisors (75873254340).

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

26551453500 is a wasteful number, since it uses less digits than its factorization.

26551453500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113 (or 65 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 36.

The spelling of 26551453500 in words is "twenty-six billion, five hundred fifty-one million, four hundred fifty-three thousand, five hundred".