2011747620 has 48 divisors (see below), whose sum is σ = 5640848640. Its totient is φ = 535708416.

The previous prime is 2011747571. The next prime is 2011747657. The reversal of 2011747620 is 267471102.

It is a Harshad number since it is a multiple of its sum of digits (30).

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 15 ways as a sum of consecutive naturals, for example, 19824 + ... + 66456.

It is an arithmetic number, because the mean of its divisors is an integer number (117517680).

Almost surely, 2^2011747620 is an apocalyptic number.

2011747620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2011747620 is an abundant number, since it is smaller than the sum of its proper divisors (3629101020).

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

2011747620 is a wasteful number, since it uses less digits than its factorization.

2011747620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47364 (or 47362 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 2011747620 is about 44852.5096287822. The cubic root of 2011747620 is about 1262.3830812878.

The spelling of 2011747620 in words is "two billion, eleven million, seven hundred forty-seven thousand, six hundred twenty".