630746674513 has 4 divisors (see below), whose sum is σ = 630786417460. Its totient is φ = 630706931568.

The previous prime is 630746674501. The next prime is 630746674531. The reversal of 630746674513 is 315476647036.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 486990435409 + 143756239104 = 697847^2 + 379152^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-630746674513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (630746674573) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19847658 + ... + 19879411.

It is an arithmetic number, because the mean of its divisors is an integer number (157696604365).

Almost surely, 2^630746674513 is an apocalyptic number.

It is an amenable number.

630746674513 is a deficient number, since it is larger than the sum of its proper divisors (39742947).

630746674513 is a wasteful number, since it uses less digits than its factorization.

630746674513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39742946.

The product of its (nonzero) digits is 7620480, while the sum is 52.

The spelling of 630746674513 in words is "six hundred thirty billion, seven hundred forty-six million, six hundred seventy-four thousand, five hundred thirteen".