26318473440 has 192 divisors, whose sum is σ = 96762968064. Its totient is φ = 5887623168.

The previous prime is 26318473429. The next prime is 26318473469. The reversal of 26318473440 is 4437481362.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 26318473392 and 26318473401.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 74592 + ... + 241248.

It is an arithmetic number, because the mean of its divisors is an integer number (503973792).

Almost surely, 2^26318473440 is an apocalyptic number.

26318473440 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 26318473440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48381484032).

26318473440 is an abundant number, since it is smaller than the sum of its proper divisors (70444494624).

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

26318473440 is a wasteful number, since it uses less digits than its factorization.

26318473440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166729 (or 166721 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 42.

The spelling of 26318473440 in words is "twenty-six billion, three hundred eighteen million, four hundred seventy-three thousand, four hundred forty".