26445635944 has 96 divisors (see below), whose sum is σ = 65387800800. Its totient is φ = 9911341440.

The previous prime is 26445635933. The next prime is 26445635977. The reversal of 26445635944 is 44953654462.

It is a happy number.

It is a super-2 number, since 2×26445635944² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a junction number, because it is equal to n+sod(n) for n = 26445635891 and 26445635900.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39742 + ... + 233389.

It is an arithmetic number, because the mean of its divisors is an integer number (681122925).

Almost surely, 2^26445635944 is an apocalyptic number.

It is an amenable number.

26445635944 is an abundant number, since it is smaller than the sum of its proper divisors (38942164856).

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

26445635944 is a wasteful number, since it uses less digits than its factorization.

26445635944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273183 (or 273172 counting only the distinct ones).

The product of its digits is 12441600, while the sum is 52.

The spelling of 26445635944 in words is "twenty-six billion, four hundred forty-five million, six hundred thirty-five thousand, nine hundred forty-four".