2061845993 has 4 divisors (see below), whose sum is σ = 2061937920. Its totient is φ = 2061754068.

The previous prime is 2061845987. The next prime is 2061845999. The reversal of 2061845993 is 3995481602.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (2061845987) and next prime (2061845999).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2061845993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2061845999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12296 + ... + 65382.

It is an arithmetic number, because the mean of its divisors is an integer number (515484480).

Almost surely, 2^2061845993 is an apocalyptic number.

It is an amenable number.

2061845993 is a deficient number, since it is larger than the sum of its proper divisors (91927).

2061845993 is an equidigital number, since it uses as much as digits as its factorization.

2061845993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91926.

The product of its (nonzero) digits is 466560, while the sum is 47.

The square root of 2061845993 is about 45407.5543604806. The cubic root of 2061845993 is about 1272.7762839325.

The spelling of 2061845993 in words is "two billion, sixty-one million, eight hundred forty-five thousand, nine hundred ninety-three".