26720641541880 has 3840 divisors, whose sum is σ = 119974345223040. Its totient is φ = 5281462517760.

The previous prime is 26720641541873. The next prime is 26720641541911. The reversal of 26720641541880 is 8814514602762.

26720641541880 is a `hidden beast` number, since 2 + 6 + 7 + 206 + 4 + 15 + 418 + 8 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 959 ways as a sum of consecutive naturals, for example, 504163047934 + ... + 504163047986.

Almost surely, 2^{26720641541880} is an apocalyptic number.

26720641541880 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 26720641541880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59987172611520).

26720641541880 is an abundant number, since it is smaller than the sum of its proper divisors (93253703681160).

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

26720641541880 is a wasteful number, since it uses less digits than its factorization.

26720641541880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185 (or 127 counting only the distinct ones).

The product of its (nonzero) digits is 5160960, while the sum is 54.

The spelling of 26720641541880 in words is "twenty-six trillion, seven hundred twenty billion, six hundred forty-one million, five hundred forty-one thousand, eight hundred eighty".