26513150564 has 24 divisors (see below), whose sum is σ = 49134791160. Its totient is φ = 12474876416.

The previous prime is 26513150549. The next prime is 26513150597. The reversal of 26513150564 is 46505131562.

It can be written as a sum of positive squares in 4 ways, for example, as 8234110564 + 18279040000 = 90742^2 + 135200^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 485222 + ... + 537090.

It is an arithmetic number, because the mean of its divisors is an integer number (2047282965).

Almost surely, 2^26513150564 is an apocalyptic number.

It is an amenable number.

26513150564 is a deficient number, since it is larger than the sum of its proper divisors (22621640596).

26513150564 is a wasteful number, since it uses less digits than its factorization.

26513150564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59407 (or 59405 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 38.

The spelling of 26513150564 in words is "twenty-six billion, five hundred thirteen million, one hundred fifty thousand, five hundred sixty-four".