26675142464440 has 128 divisors (see below), whose sum is σ = 65201197561920. Its totient is φ = 9782178611200.

The previous prime is 26675142464429. The next prime is 26675142464449. The reversal of 26675142464440 is 4446424157662.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26675142464449) 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, 17124759 + ... + 18617401.

Almost surely, 2^{26675142464440} is an apocalyptic number.

26675142464440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26675142464440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32600598780960).

26675142464440 is an abundant number, since it is smaller than the sum of its proper divisors (38526055097480).

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

26675142464440 is a wasteful number, since it uses less digits than its factorization.

26675142464440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1493353 (or 1493349 counting only the distinct ones).

The product of its (nonzero) digits is 30965760, while the sum is 55.

The spelling of 26675142464440 in words is "twenty-six trillion, six hundred seventy-five billion, one hundred forty-two million, four hundred sixty-four thousand, four hundred forty".