1072661247629 has 2 divisors, whose sum is σ = 1072661247630. Its totient is φ = 1072661247628.

The previous prime is 1072661247601. The next prime is 1072661247631. The reversal of 1072661247629 is 9267421662701.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1048012875625 + 24648372004 = 1023725^2 + 156998^2 .

It is a cyclic number.

It is not a de Polignac number, because 1072661247629 - 2³⁶ = 1003941770893 is a prime.

Together with 1072661247631, 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 (1072661247659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 536330623814 + 536330623815.

It is an arithmetic number, because the mean of its divisors is an integer number (536330623815).

Almost surely, 2^{1072661247629} is an apocalyptic number.

It is an amenable number.

1072661247629 is a deficient number, since it is larger than the sum of its proper divisors (1).

1072661247629 is an equidigital number, since it uses as much as digits as its factorization.

1072661247629 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3048192, while the sum is 53.

The spelling of 1072661247629 in words is "one trillion, seventy-two billion, six hundred sixty-one million, two hundred forty-seven thousand, six hundred twenty-nine".