26461640603 has 4 divisors (see below), whose sum is σ = 26636883408. Its totient is φ = 26286397800.

The previous prime is 26461640567. The next prime is 26461640627. The reversal of 26461640603 is 30604616462.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26461640603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26461640663) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 87621176 + ... + 87621477.

It is an arithmetic number, because the mean of its divisors is an integer number (6659220852).

Almost surely, 2^26461640603 is an apocalyptic number.

26461640603 is a deficient number, since it is larger than the sum of its proper divisors (175242805).

26461640603 is a wasteful number, since it uses less digits than its factorization.

26461640603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175242804.

The product of its (nonzero) digits is 124416, while the sum is 38.

The spelling of 26461640603 in words is "twenty-six billion, four hundred sixty-one million, six hundred forty thousand, six hundred three".