2061589950 has 144 divisors (see below), whose sum is σ = 6369592320. Its totient is φ = 468279360.

The previous prime is 2061589891. The next prime is 2061589963. The reversal of 2061589950 is 599851602.

2061589950 is a `hidden beast` number, since 2 + 0 + 61 + 589 + 9 + 5 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 2061589896 and 2061589905.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 524091 + ... + 528009.

It is an arithmetic number, because the mean of its divisors is an integer number (44233280).

Almost surely, 2^2061589950 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2061589950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3184796160).

2061589950 is an abundant number, since it is smaller than the sum of its proper divisors (4308002370).

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

2061589950 is a wasteful number, since it uses less digits than its factorization.

2061589950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4111 (or 4103 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 45.

The square root of 2061589950 is about 45404.7348852518. The cubic root of 2061589950 is about 1272.7235966885.

The spelling of 2061589950 in words is "two billion, sixty-one million, five hundred eighty-nine thousand, nine hundred fifty".