26400365264644 has 48 divisors (see below), whose sum is σ = 55103498553600. Its totient is φ = 10821118467456.

The previous prime is 26400365264633. The next prime is 26400365264677. The reversal of 26400365264644 is 44646256300462.

It is a super-2 number, since 2×26400365264644² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 26400365264591 and 26400365264600.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2384562 + ... + 7647670.

It is an arithmetic number, because the mean of its divisors is an integer number (1147989553200).

Almost surely, 2^{26400365264644} is an apocalyptic number.

It is an amenable number.

26400365264644 is an abundant number, since it is smaller than the sum of its proper divisors (28703133288956).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26400365264644 is a wasteful number, since it uses less digits than its factorization.

26400365264644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5270932 (or 5270930 counting only the distinct ones).

The product of its (nonzero) digits is 19906560, while the sum is 52.

The spelling of 26400365264644 in words is "twenty-six trillion, four hundred billion, three hundred sixty-five million, two hundred sixty-four thousand, six hundred forty-four".