26645488458 has 64 divisors (see below), whose sum is σ = 56741316480. Its totient is φ = 8341622016.

The previous prime is 26645488453. The next prime is 26645488481. The reversal of 26645488458 is 85488454662.

It is a super-2 number, since 2×26645488458² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (26645488453) 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, 24377760 + ... + 24378852.

It is an arithmetic number, because the mean of its divisors is an integer number (886583070).

Almost surely, 2^26645488458 is an apocalyptic number.

26645488458 is an abundant number, since it is smaller than the sum of its proper divisors (30095828022).

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

26645488458 is a wasteful number, since it uses less digits than its factorization.

26645488458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1976 (or 1942 counting only the distinct ones).

The product of its digits is 58982400, while the sum is 60.

The spelling of 26645488458 in words is "twenty-six billion, six hundred forty-five million, four hundred eighty-eight thousand, four hundred fifty-eight".