26938040220 has 288 divisors, whose sum is σ = 104942702592. Its totient is φ = 5436440064.

The previous prime is 26938040219. The next prime is 26938040249. The reversal of 26938040220 is 2204083962.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 340989 + ... + 412491.

It is an arithmetic number, because the mean of its divisors is an integer number (364384384).

Almost surely, 2^26938040220 is an apocalyptic number.

26938040220 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 26938040220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52471351296).

26938040220 is an abundant number, since it is smaller than the sum of its proper divisors (78004662372).

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

26938040220 is a wasteful number, since it uses less digits than its factorization.

26938040220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71561 (or 71556 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The spelling of 26938040220 in words is "twenty-six billion, nine hundred thirty-eight million, forty thousand, two hundred twenty".