630740235657 has 16 divisors (see below), whose sum is σ = 962464757760. Its totient is φ = 359921699472.

The previous prime is 630740235637. The next prime is 630740235659. The reversal of 630740235657 is 756532047036.

It is not a de Polignac number, because 630740235657 - 2⁷ = 630740235529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (630740235659) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20871723 + ... + 20901920.

It is an arithmetic number, because the mean of its divisors is an integer number (60154047360).

Almost surely, 2^630740235657 is an apocalyptic number.

It is an amenable number.

630740235657 is a deficient number, since it is larger than the sum of its proper divisors (331724522103).

630740235657 is a wasteful number, since it uses less digits than its factorization.

630740235657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41774372.

The product of its (nonzero) digits is 3175200, while the sum is 48.

The spelling of 630740235657 in words is "six hundred thirty billion, seven hundred forty million, two hundred thirty-five thousand, six hundred fifty-seven".