1629459909029 has 2 divisors, whose sum is σ = 1629459909030. Its totient is φ = 1629459909028.

The previous prime is 1629459908959. The next prime is 1629459909047. The reversal of 1629459909029 is 9209099549261.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 816315864004 + 813144045025 = 903502^2 + 901745^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1629459909029 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1629459909059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 814729954514 + 814729954515.

It is an arithmetic number, because the mean of its divisors is an integer number (814729954515).

Almost surely, 2^{1629459909029} is an apocalyptic number.

It is an amenable number.

1629459909029 is a deficient number, since it is larger than the sum of its proper divisors (1).

1629459909029 is an equidigital number, since it uses as much as digits as its factorization.

1629459909029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28343520, while the sum is 65.

The spelling of 1629459909029 in words is "one trillion, six hundred twenty-nine billion, four hundred fifty-nine million, nine hundred nine thousand, twenty-nine".