26457641406 has 24 divisors (see below), whose sum is σ = 65514159984. Its totient is φ = 7559326080.

The previous prime is 26457641389. The next prime is 26457641443. The reversal of 26457641406 is 60414675462.

26457641406 is a `hidden beast` number, since 2 + 64 + 576 + 4 + 14 + 0 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 104990515 + ... + 104990766.

It is an arithmetic number, because the mean of its divisors is an integer number (2729756666).

Almost surely, 2^26457641406 is an apocalyptic number.

26457641406 is an abundant number, since it is smaller than the sum of its proper divisors (39056518578).

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

26457641406 is a wasteful number, since it uses less digits than its factorization.

26457641406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209981296 (or 209981293 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 45.

The spelling of 26457641406 in words is "twenty-six billion, four hundred fifty-seven million, six hundred forty-one thousand, four hundred six".