26722059840 has 896 divisors, whose sum is σ = 112361472000. Its totient is φ = 5974456320.

The previous prime is 26722059829. The next prime is 26722059853. The reversal of 26722059840 is 4895022762.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 210409857 + ... + 210409983.

Almost surely, 2^26722059840 is an apocalyptic number.

26722059840 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 26722059840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56180736000).

26722059840 is an abundant number, since it is smaller than the sum of its proper divisors (85639412160).

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

26722059840 is a wasteful number, since it uses less digits than its factorization.

26722059840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245 (or 215 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 26722059840 in words is "twenty-six billion, seven hundred twenty-two million, fifty-nine thousand, eight hundred forty".