26530121531232 has 144 divisors (see below), whose sum is σ = 82306305506880. Its totient is φ = 8039173574400.

The previous prime is 26530121531209. The next prime is 26530121531237. The reversal of 26530121531232 is 23213512103562.

26530121531232 is a `hidden beast` number, since 2 + 6 + 5 + 301 + 2 + 1 + 5 + 312 + 32 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26530121531237) 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, 114347119 + ... + 114578897.

It is an arithmetic number, because the mean of its divisors is an integer number (571571566020).

Almost surely, 2^{26530121531232} is an apocalyptic number.

26530121531232 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

26530121531232 is an abundant number, since it is smaller than the sum of its proper divisors (55776183975648).

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

26530121531232 is a wasteful number, since it uses less digits than its factorization.

26530121531232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267937 (or 267926 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

Adding to 26530121531232 its reverse (23213512103562), we get a palindrome (49743633634794).

The spelling of 26530121531232 in words is "twenty-six trillion, five hundred thirty billion, one hundred twenty-one million, five hundred thirty-one thousand, two hundred thirty-two".