2001294955349 has 4 divisors (see below), whose sum is σ = 2010034234860. Its totient is φ = 1992555675840.

The previous prime is 2001294955327. The next prime is 2001294955351. The reversal of 2001294955349 is 9435594921002.

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 1965519880900 + 35775074449 = 1401970^2 + 189143^2 .

It is a cyclic number.

It is not a de Polignac number, because 2001294955349 - 2⁴⁰ = 901783327573 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 2001294955349.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001294915349) 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, 4369639412 + ... + 4369639869.

It is an arithmetic number, because the mean of its divisors is an integer number (502508558715).

Almost surely, 2^{2001294955349} is an apocalyptic number.

It is an amenable number.

2001294955349 is a deficient number, since it is larger than the sum of its proper divisors (8739279511).

2001294955349 is an equidigital number, since it uses as much as digits as its factorization.

2001294955349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8739279510.

The product of its (nonzero) digits is 3499200, while the sum is 53.

The spelling of 2001294955349 in words is "two trillion, one billion, two hundred ninety-four million, nine hundred fifty-five thousand, three hundred forty-nine".