26270536644 has 36 divisors (see below), whose sum is σ = 72442996080. Its totient is φ = 7960768560.

The previous prime is 26270536601. The next prime is 26270536673. The reversal of 26270536644 is 44663507262.

26270536644 is a `hidden beast` number, since 2 + 6 + 2 + 70 + 536 + 6 + 44 = 666.

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

It is a self number, because there is not a number n which added to its sum of digits gives 26270536644.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 33169474 + ... + 33170265.

Almost surely, 2^26270536644 is an apocalyptic number.

It is an amenable number.

26270536644 is an abundant number, since it is smaller than the sum of its proper divisors (46172459436).

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

26270536644 is a wasteful number, since it uses less digits than its factorization.

26270536644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66339760 (or 66339755 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 45.

The spelling of 26270536644 in words is "twenty-six billion, two hundred seventy million, five hundred thirty-six thousand, six hundred forty-four".