5631515121629 has 2 divisors, whose sum is σ = 5631515121630. Its totient is φ = 5631515121628.

The previous prime is 5631515121599. The next prime is 5631515121643. The reversal of 5631515121629 is 9261215151365.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5534364465529 + 97150656100 = 2352523^2 + 311690^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5631515121629 is a prime.

It is a super-2 number, since 2×5631515121629² (a number of 26 digits) contains 22 as substring.

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 (5631515123629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2815757560814 + 2815757560815.

It is an arithmetic number, because the mean of its divisors is an integer number (2815757560815).

Almost surely, 2^{5631515121629} is an apocalyptic number.

It is an amenable number.

5631515121629 is a deficient number, since it is larger than the sum of its proper divisors (1).

5631515121629 is an equidigital number, since it uses as much as digits as its factorization.

5631515121629 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 486000, while the sum is 47.

The spelling of 5631515121629 in words is "five trillion, six hundred thirty-one billion, five hundred fifteen million, one hundred twenty-one thousand, six hundred twenty-nine".