1049621126429 has 2 divisors, whose sum is σ = 1049621126430. Its totient is φ = 1049621126428.

The previous prime is 1049621126369. The next prime is 1049621126431. The reversal of 1049621126429 is 9246211269401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 975547339204 + 74073787225 = 987698^2 + 272165^2 .

It is a cyclic number.

It is not a de Polignac number, because 1049621126429 - 2²⁰ = 1049620077853 is a prime.

It is a super-3 number, since 3×1049621126429³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 1049621126431, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1049621126129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 524810563214 + 524810563215.

It is an arithmetic number, because the mean of its divisors is an integer number (524810563215).

Almost surely, 2^{1049621126429} is an apocalyptic number.

It is an amenable number.

1049621126429 is a deficient number, since it is larger than the sum of its proper divisors (1).

1049621126429 is an equidigital number, since it uses as much as digits as its factorization.

1049621126429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 373248, while the sum is 47.

The spelling of 1049621126429 in words is "one trillion, forty-nine billion, six hundred twenty-one million, one hundred twenty-six thousand, four hundred twenty-nine".