26103272506 has 8 divisors (see below), whose sum is σ = 41458138740. Its totient is φ = 12283892928.

The previous prime is 26103272501. The next prime is 26103272513. The reversal of 26103272506 is 60527230162.

It can be written as a sum of positive squares in 2 ways, for example, as 23742187225 + 2361085281 = 154085^2 + 48591^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (34), and also a Moran number because the ratio is a prime number: 767743309 = 26103272506 / (2 + 6 + 1 + 0 + 3 + 2 + 7 + 2 + 5 + 0 + 6).

It is not an unprimeable number, because it can be changed into a prime (26103272501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 383871621 + ... + 383871688.

Almost surely, 2^26103272506 is an apocalyptic number.

26103272506 is a deficient number, since it is larger than the sum of its proper divisors (15354866234).

26103272506 is a wasteful number, since it uses less digits than its factorization.

26103272506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 767743328.

The product of its (nonzero) digits is 30240, while the sum is 34.

The spelling of 26103272506 in words is "twenty-six billion, one hundred three million, two hundred seventy-two thousand, five hundred six".