2044402002451 has 2 divisors, whose sum is σ = 2044402002452. Its totient is φ = 2044402002450.

The previous prime is 2044402002443. The next prime is 2044402002463. The reversal of 2044402002451 is 1542002044402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2044402002451 - 2³ = 2044402002443 is a prime.

It is a super-2 number, since 2×2044402002451² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2044402002551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1022201001225 + 1022201001226.

It is an arithmetic number, because the mean of its divisors is an integer number (1022201001226).

Almost surely, 2^{2044402002451} is an apocalyptic number.

2044402002451 is a deficient number, since it is larger than the sum of its proper divisors (1).

2044402002451 is an equidigital number, since it uses as much as digits as its factorization.

2044402002451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10240, while the sum is 28.

Adding to 2044402002451 its reverse (1542002044402), we get a palindrome (3586404046853).

The spelling of 2044402002451 in words is "two trillion, forty-four billion, four hundred two million, two thousand, four hundred fifty-one".