630655634387 has 2 divisors, whose sum is σ = 630655634388. Its totient is φ = 630655634386.

The previous prime is 630655634363. The next prime is 630655634417. The reversal of 630655634387 is 783436556036.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 630655634387 - 2²⁰ = 630654585811 is a prime.

It is not a weakly prime, because it can be changed into another prime (630655634317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315327817193 + 315327817194.

It is an arithmetic number, because the mean of its divisors is an integer number (315327817194).

Almost surely, 2^630655634387 is an apocalyptic number.

630655634387 is a deficient number, since it is larger than the sum of its proper divisors (1).

630655634387 is an equidigital number, since it uses as much as digits as its factorization.

630655634387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32659200, while the sum is 56.

The spelling of 630655634387 in words is "six hundred thirty billion, six hundred fifty-five million, six hundred thirty-four thousand, three hundred eighty-seven".