26466400401 has 16 divisors (see below), whose sum is σ = 41313406848. Its totient is φ = 14754787200.

The previous prime is 26466400397. The next prime is 26466400423. The reversal of 26466400401 is 10400466462.

It is not a de Polignac number, because 26466400401 - 2² = 26466400397 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26466400001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15368710 + ... + 15370431.

It is an arithmetic number, because the mean of its divisors is an integer number (2582087928).

Almost surely, 2^26466400401 is an apocalyptic number.

26466400401 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

26466400401 is a deficient number, since it is larger than the sum of its proper divisors (14847006447).

26466400401 is a wasteful number, since it uses less digits than its factorization.

26466400401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30739192.

The product of its (nonzero) digits is 27648, while the sum is 33.

Adding to 26466400401 its reverse (10400466462), we get a palindrome (36866866863).

The spelling of 26466400401 in words is "twenty-six billion, four hundred sixty-six million, four hundred thousand, four hundred one".