2061921599 has 8 divisors (see below), whose sum is σ = 2071774320. Its totient is φ = 2052089856.

The previous prime is 2061921523. The next prime is 2061921637. The reversal of 2061921599 is 9951291602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2061921599 - 2¹² = 2061917503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2061221599) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 212927 + ... + 222399.

It is an arithmetic number, because the mean of its divisors is an integer number (258971790).

Almost surely, 2^2061921599 is an apocalyptic number.

2061921599 is a deficient number, since it is larger than the sum of its proper divisors (9852721).

2061921599 is an equidigital number, since it uses as much as digits as its factorization.

2061921599 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10489.

The product of its (nonzero) digits is 87480, while the sum is 44.

The square root of 2061921599 is about 45408.3868795182. The cubic root of 2061921599 is about 1272.7918409217.

The spelling of 2061921599 in words is "two billion, sixty-one million, nine hundred twenty-one thousand, five hundred ninety-nine".