26553996468 has 36 divisors (see below), whose sum is σ = 67142809188. Its totient is φ = 8848667520.

The previous prime is 26553996463. The next prime is 26553996487. The reversal of 26553996468 is 86469935562.

26553996468 is a `hidden beast` number, since 2 + 6 + 5 + 539 + 96 + 4 + 6 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 12748216464 + 13805780004 = 112908^2 + 117498^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×26553996468² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26553996463) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12088 + ... + 230768.

It is an arithmetic number, because the mean of its divisors is an integer number (1865078033).

Almost surely, 2^26553996468 is an apocalyptic number.

It is an amenable number.

26553996468 is an abundant number, since it is smaller than the sum of its proper divisors (40588812720).

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

26553996468 is a wasteful number, since it uses less digits than its factorization.

26553996468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222064 (or 222059 counting only the distinct ones).

The product of its digits is 83980800, while the sum is 63.

The spelling of 26553996468 in words is "twenty-six billion, five hundred fifty-three million, nine hundred ninety-six thousand, four hundred sixty-eight".