26063531220 has 72 divisors (see below), whose sum is σ = 74381289696. Its totient is φ = 6819093632.

The previous prime is 26063531209. The next prime is 26063531239. The reversal of 26063531220 is 2213536062.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 91219 + ... + 245861.

It is an arithmetic number, because the mean of its divisors is an integer number (1033073468).

Almost surely, 2^26063531220 is an apocalyptic number.

26063531220 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 26063531220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37190644848).

26063531220 is an abundant number, since it is smaller than the sum of its proper divisors (48317758476).

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

26063531220 is a wasteful number, since it uses less digits than its factorization.

26063531220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154761 (or 154706 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

The spelling of 26063531220 in words is "twenty-six billion, sixty-three million, five hundred thirty-one thousand, two hundred twenty".