26026400506 has 8 divisors (see below), whose sum is σ = 39090369780. Its totient is φ = 12996277248.

The previous prime is 26026400497. The next prime is 26026400509. The reversal of 26026400506 is 60500462062.

It can be written as a sum of positive squares in 2 ways, for example, as 24082384225 + 1944016281 = 155185^2 + 44091^2 .

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

It is not an unprimeable number, because it can be changed into a prime (26026400509) 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, 8459581 + ... + 8462656.

Almost surely, 2^26026400506 is an apocalyptic number.

26026400506 is a deficient number, since it is larger than the sum of its proper divisors (13063969274).

26026400506 is a wasteful number, since it uses less digits than its factorization.

26026400506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16923008.

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 26026400506 its reverse (60500462062), we get a palindrome (86526862568).

The spelling of 26026400506 in words is "twenty-six billion, twenty-six million, four hundred thousand, five hundred six".