26040645436 has 48 divisors (see below), whose sum is σ = 50865818080. Its totient is φ = 11586551040.

The previous prime is 26040645431. The next prime is 26040645457. The reversal of 26040645436 is 63454604062.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26040645431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147631 + ... + 271801.

Almost surely, 2^26040645436 is an apocalyptic number.

26040645436 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

26040645436 is a deficient number, since it is larger than the sum of its proper divisors (24825172644).

26040645436 is a wasteful number, since it uses less digits than its factorization.

26040645436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124334 (or 124332 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 40.

The spelling of 26040645436 in words is "twenty-six billion, forty million, six hundred forty-five thousand, four hundred thirty-six".