26240816481 has 32 divisors (see below), whose sum is σ = 39421464576. Its totient is φ = 15382008000.

The previous prime is 26240816477. The next prime is 26240816491. The reversal of 26240816481 is 18461804262.

It is not a de Polignac number, because 26240816481 - 2² = 26240816477 is a prime.

It is a super-2 number, since 2×26240816481² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (26240816411) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2173995 + ... + 2186031.

It is an arithmetic number, because the mean of its divisors is an integer number (1231920768).

Almost surely, 2^26240816481 is an apocalyptic number.

It is an amenable number.

26240816481 is a deficient number, since it is larger than the sum of its proper divisors (13180648095).

26240816481 is a wasteful number, since it uses less digits than its factorization.

26240816481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14213.

The product of its (nonzero) digits is 147456, while the sum is 42.

The spelling of 26240816481 in words is "twenty-six billion, two hundred forty million, eight hundred sixteen thousand, four hundred eighty-one".