26481757688 has 32 divisors (see below), whose sum is σ = 51279298560. Its totient is φ = 12807683040.

The previous prime is 26481757649. The next prime is 26481757693. The reversal of 26481757688 is 88675718462.

It is a Harshad number since it is a multiple of its sum of digits (62).

It is a self number, because there is not a number n which added to its sum of digits gives 26481757688.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 523145 + ... + 571527.

It is an arithmetic number, because the mean of its divisors is an integer number (1602478080).

Almost surely, 2^26481757688 is an apocalyptic number.

It is an amenable number.

26481757688 is a deficient number, since it is larger than the sum of its proper divisors (24797540872).

26481757688 is a wasteful number, since it uses less digits than its factorization.

26481757688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50627 (or 50623 counting only the distinct ones).

The product of its digits is 36126720, while the sum is 62.

The spelling of 26481757688 in words is "twenty-six billion, four hundred eighty-one million, seven hundred fifty-seven thousand, six hundred eighty-eight".