26620980480 has 504 divisors, whose sum is σ = 97799611392. Its totient is φ = 6936440832.

The previous prime is 26620980473. The next prime is 26620980497. The reversal of 26620980480 is 8408902662.

26620980480 is a `hidden beast` number, since 2 + 66 + 20 + 98 + 0 + 480 = 666.

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 (17) of ones.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 43856337 + ... + 43856943.

It is an arithmetic number, because the mean of its divisors is an integer number (194046848).

Almost surely, 2^26620980480 is an apocalyptic number.

26620980480 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 26620980480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48899805696).

26620980480 is an abundant number, since it is smaller than the sum of its proper divisors (71178630912).

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

26620980480 is an frugal number, since it uses more digits than its factorization.

26620980480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693 (or 664 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The spelling of 26620980480 in words is "twenty-six billion, six hundred twenty million, nine hundred eighty thousand, four hundred eighty".