630157047722 has 4 divisors (see below), whose sum is σ = 945235571586. Its totient is φ = 315078523860.

The previous prime is 630157047691. The next prime is 630157047739. The reversal of 630157047722 is 227740751036.

630157047722 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 616647402361 + 13509645361 = 785269^2 + 116231^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157539261929 + ... + 157539261932.

Almost surely, 2^630157047722 is an apocalyptic number.

630157047722 is a deficient number, since it is larger than the sum of its proper divisors (315078523864).

630157047722 is a wasteful number, since it uses less digits than its factorization.

630157047722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315078523863.

The product of its (nonzero) digits is 493920, while the sum is 44.

Adding to 630157047722 its reverse (227740751036), we get a palindrome (857897798758).

The spelling of 630157047722 in words is "six hundred thirty billion, one hundred fifty-seven million, forty-seven thousand, seven hundred twenty-two".