26406026461 has 4 divisors (see below), whose sum is σ = 27554114592. Its totient is φ = 25257938332.

The previous prime is 26406026459. The next prime is 26406026519. The reversal of 26406026461 is 16462060462.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 16462060462 = 2 ⋅8231030231.

It is a cyclic number.

It is not a de Polignac number, because 26406026461 - 2¹ = 26406026459 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 26406026461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26406026561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 574044031 + ... + 574044076.

It is an arithmetic number, because the mean of its divisors is an integer number (6888528648).

Almost surely, 2^26406026461 is an apocalyptic number.

It is an amenable number.

26406026461 is a deficient number, since it is larger than the sum of its proper divisors (1148088131).

26406026461 is a wasteful number, since it uses less digits than its factorization.

26406026461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1148088130.

The product of its (nonzero) digits is 82944, while the sum is 37.

It can be divided in two parts, 264060 and 26461, that added together give a square (290521 = 539²).

The spelling of 26406026461 in words is "twenty-six billion, four hundred six million, twenty-six thousand, four hundred sixty-one".