2061890795520 has 480 divisors, whose sum is σ = 7418535284160. Its totient is φ = 547748904960.

The previous prime is 2061890795443. The next prime is 2061890795537. The reversal of 2061890795520 is 255970981602.

2061890795520 is a `hidden beast` number, since 2 + 0 + 6 + 1 + 89 + 0 + 7 + 9 + 552 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (480).

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 39 ways as a sum of consecutive naturals, for example, 224773654 + ... + 224782826.

It is an arithmetic number, because the mean of its divisors is an integer number (15455281842).

Almost surely, 2^{2061890795520} is an apocalyptic number.

2061890795520 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 2061890795520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3709267642080).

2061890795520 is an abundant number, since it is smaller than the sum of its proper divisors (5356644488640).

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

2061890795520 is an equidigital number, since it uses as much as digits as its factorization.

2061890795520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9483 (or 9454 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 54.

The spelling of 2061890795520 in words is "two trillion, sixty-one billion, eight hundred ninety million, seven hundred ninety-five thousand, five hundred twenty".