26403563461 has 8 divisors (see below), whose sum is σ = 28889362944. Its totient is φ = 23932009920.

The previous prime is 26403563453. The next prime is 26403563489. The reversal of 26403563461 is 16436530462.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 26403563461 - 2³ = 26403563453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26403563441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3557605 + ... + 3565018.

It is an arithmetic number, because the mean of its divisors is an integer number (3611170368).

Almost surely, 2^26403563461 is an apocalyptic number.

It is an amenable number.

26403563461 is a deficient number, since it is larger than the sum of its proper divisors (2485799483).

26403563461 is a wasteful number, since it uses less digits than its factorization.

26403563461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7122971.

The product of its (nonzero) digits is 311040, while the sum is 40.

The spelling of 26403563461 in words is "twenty-six billion, four hundred three million, five hundred sixty-three thousand, four hundred sixty-one".