26143052436 has 72 divisors (see below), whose sum is σ = 66445042664. Its totient is φ = 8666818560.

The previous prime is 26143052431. The next prime is 26143052461. The reversal of 26143052436 is 63425034162.

26143052436 is a `hidden beast` number, since 2 + 61 + 43 + 0 + 524 + 36 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 22678552836 + 3464499600 = 150594^2 + 58860^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 26143052436.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26143052431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8960850 + ... + 8963766.

Almost surely, 2^26143052436 is an apocalyptic number.

It is an amenable number.

26143052436 is an abundant number, since it is smaller than the sum of its proper divisors (40301990228).

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

26143052436 is a wasteful number, since it uses less digits than its factorization.

26143052436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4201 (or 4196 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

Adding to 26143052436 its reverse (63425034162), we get a palindrome (89568086598).

The spelling of 26143052436 in words is "twenty-six billion, one hundred forty-three million, fifty-two thousand, four hundred thirty-six".