26436016980 has 120 divisors (see below), whose sum is σ = 83324878560. Its totient is φ = 7016103360.

The previous prime is 26436016973. The next prime is 26436016993. The reversal of 26436016980 is 8961063462.

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

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 303151 + ... + 380489.

It is an arithmetic number, because the mean of its divisors is an integer number (694373988).

Almost surely, 2^26436016980 is an apocalyptic number.

26436016980 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 26436016980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41662439280).

26436016980 is an abundant number, since it is smaller than the sum of its proper divisors (56888861580).

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

26436016980 is a wasteful number, since it uses less digits than its factorization.

26436016980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77571 (or 77560 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The spelling of 26436016980 in words is "twenty-six billion, four hundred thirty-six million, sixteen thousand, nine hundred eighty".