26136540434 has 16 divisors (see below), whose sum is σ = 39603989880. Its totient is φ = 12935516160.

The previous prime is 26136540421. The next prime is 26136540481. The reversal of 26136540434 is 43404563162.

It can be written as a sum of positive squares in 4 ways, for example, as 9636367225 + 16500173209 = 98165^2 + 128453^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96002 + ... + 247970.

Almost surely, 2^26136540434 is an apocalyptic number.

26136540434 is a deficient number, since it is larger than the sum of its proper divisors (13467449446).

26136540434 is a wasteful number, since it uses less digits than its factorization.

26136540434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152845.

The product of its (nonzero) digits is 207360, while the sum is 38.

The spelling of 26136540434 in words is "twenty-six billion, one hundred thirty-six million, five hundred forty thousand, four hundred thirty-four".