2644001193 has 8 divisors (see below), whose sum is σ = 3526343008. Its totient is φ = 1762163424.

The previous prime is 2644001123. The next prime is 2644001197. The reversal of 2644001193 is 3911004462.

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

It is a de Polignac number, because none of the positive numbers 2^k-2644001193 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2644001193.

It is not an unprimeable number, because it can be changed into a prime (2644001197) 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, 113596 + ... + 134877.

It is an arithmetic number, because the mean of its divisors is an integer number (440792876).

Almost surely, 2^2644001193 is an apocalyptic number.

It is an amenable number.

2644001193 is a deficient number, since it is larger than the sum of its proper divisors (882341815).

2644001193 is a wasteful number, since it uses less digits than its factorization.

2644001193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252023.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 2644001193 is about 51419.8521293090. The cubic root of 2644001193 is about 1382.7825242857.

The spelling of 2644001193 in words is "two billion, six hundred forty-four million, one thousand, one hundred ninety-three".