2001402044249 has 2 divisors, whose sum is σ = 2001402044250. Its totient is φ = 2001402044248.

The previous prime is 2001402044231. The next prime is 2001402044251. The reversal of 2001402044249 is 9424402041002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1610251867849 + 391150176400 = 1268957^2 + 625420^2 .

It is a cyclic number.

It is not a de Polignac number, because 2001402044249 - 2¹² = 2001402040153 is a prime.

It is a super-2 number, since 2×2001402044249² (a number of 25 digits) contains 22 as substring.

Together with 2001402044251, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2001402044269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000701022124 + 1000701022125.

It is an arithmetic number, because the mean of its divisors is an integer number (1000701022125).

Almost surely, 2^{2001402044249} is an apocalyptic number.

It is an amenable number.

2001402044249 is a deficient number, since it is larger than the sum of its proper divisors (1).

2001402044249 is an equidigital number, since it uses as much as digits as its factorization.

2001402044249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18432, while the sum is 32.

The spelling of 2001402044249 in words is "two trillion, one billion, four hundred two million, forty-four thousand, two hundred forty-nine".