26343530645450 has 48 divisors (see below), whose sum is σ = 49174344276696. Its totient is φ = 10499722521600.

The previous prime is 26343530645449. The next prime is 26343530645459. The reversal of 26343530645450 is 5454603534362.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 340884325609 + 26002646319841 = 583853^2 + 5099279^2 .

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (26343530645459) 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, 40697534 + ... + 41339766.

Almost surely, 2^{26343530645450} is an apocalyptic number.

26343530645450 is a deficient number, since it is larger than the sum of its proper divisors (22830813631246).

26343530645450 is a wasteful number, since it uses less digits than its factorization.

26343530645450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645179 (or 645174 counting only the distinct ones).

The product of its (nonzero) digits is 15552000, while the sum is 50.

The spelling of 26343530645450 in words is "twenty-six trillion, three hundred forty-three billion, five hundred thirty million, six hundred forty-five thousand, four hundred fifty".