26421812463 has 8 divisors (see below), whose sum is σ = 35232548400. Its totient is φ = 17612809088.

The previous prime is 26421812447. The next prime is 26421812497. The reversal of 26421812463 is 36421812462.

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 26421812463 - 2⁴ = 26421812447 is a prime.

It is a super-2 number, since 2×26421812463² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26421822463) 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, 397128 + ... + 458861.

It is an arithmetic number, because the mean of its divisors is an integer number (4404068550).

Almost surely, 2^26421812463 is an apocalyptic number.

26421812463 is a deficient number, since it is larger than the sum of its proper divisors (8810735937).

26421812463 is a wasteful number, since it uses less digits than its factorization.

26421812463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 866281.

The product of its digits is 110592, while the sum is 39.

Subtracting 26421812463 from its reverse (36421812462), we obtain a palindrome (9999999999).

The spelling of 26421812463 in words is "twenty-six billion, four hundred twenty-one million, eight hundred twelve thousand, four hundred sixty-three".