630540812399 has 2 divisors, whose sum is σ = 630540812400. Its totient is φ = 630540812398.

The previous prime is 630540812351. The next prime is 630540812411. The reversal of 630540812399 is 993218045036.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-630540812399 is a prime.

It is a super-2 number, since 2×630540812399² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (630540812599) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315270406199 + 315270406200.

It is an arithmetic number, because the mean of its divisors is an integer number (315270406200).

Almost surely, 2^630540812399 is an apocalyptic number.

630540812399 is a deficient number, since it is larger than the sum of its proper divisors (1).

630540812399 is an equidigital number, since it uses as much as digits as its factorization.

630540812399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1399680, while the sum is 50.

The spelling of 630540812399 in words is "six hundred thirty billion, five hundred forty million, eight hundred twelve thousand, three hundred ninety-nine".