26450059440 has 160 divisors (see below), whose sum is σ = 93758570496. Its totient is φ = 6042516480.

The previous prime is 26450059439. The next prime is 26450059451. The reversal of 26450059440 is 4495005462.

It is a happy number.

It is a super-2 number, since 2×26450059440² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4803729 + ... + 4809231.

Almost surely, 2^26450059440 is an apocalyptic number.

26450059440 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 26450059440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46879285248).

26450059440 is an abundant number, since it is smaller than the sum of its proper divisors (67308511056).

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

26450059440 is a wasteful number, since it uses less digits than its factorization.

26450059440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8387 (or 8381 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 39.

The spelling of 26450059440 in words is "twenty-six billion, four hundred fifty million, fifty-nine thousand, four hundred forty".