629511172249 has 2 divisors, whose sum is σ = 629511172250. Its totient is φ = 629511172248.

The previous prime is 629511172193. The next prime is 629511172253. The reversal of 629511172249 is 942271115926.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 319980286224 + 309530886025 = 565668^2 + 556355^2 .

It is a cyclic number.

It is not a de Polignac number, because 629511172249 - 2¹¹ = 629511170201 is a prime.

It is not a weakly prime, because it can be changed into another prime (629511179249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 314755586124 + 314755586125.

It is an arithmetic number, because the mean of its divisors is an integer number (314755586125).

Almost surely, 2^629511172249 is an apocalyptic number.

It is an amenable number.

629511172249 is a deficient number, since it is larger than the sum of its proper divisors (1).

629511172249 is an equidigital number, since it uses as much as digits as its factorization.

629511172249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 544320, while the sum is 49.

The spelling of 629511172249 in words is "six hundred twenty-nine billion, five hundred eleven million, one hundred seventy-two thousand, two hundred forty-nine".