2617920001 has 4 divisors (see below), whose sum is σ = 2667314772. Its totient is φ = 2568525232.

The previous prime is 2617919977. The next prime is 2617920037. The reversal of 2617920001 is 1000297162.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1525683600 + 1092236401 = 39060^2 + 33049^2 .

It is a cyclic number.

It is not a de Polignac number, because 2617920001 - 2⁹ = 2617919489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2617920401) 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, 24697306 + ... + 24697411.

It is an arithmetic number, because the mean of its divisors is an integer number (666828693).

Almost surely, 2^2617920001 is an apocalyptic number.

It is an amenable number.

2617920001 is a deficient number, since it is larger than the sum of its proper divisors (49394771).

2617920001 is an equidigital number, since it uses as much as digits as its factorization.

2617920001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49394770.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 2617920001 is about 51165.6134625590. The cubic root of 2617920001 is about 1378.2207695856.

The spelling of 2617920001 in words is "two billion, six hundred seventeen million, nine hundred twenty thousand, one".