634266770993 has 2 divisors, whose sum is σ = 634266770994. Its totient is φ = 634266770992.

The previous prime is 634266770983. The next prime is 634266770999. The reversal of 634266770993 is 399077662436.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 373653457984 + 260613313009 = 611272^2 + 510503^2 .

It is a cyclic number.

It is not a de Polignac number, because 634266770993 - 2²⁴ = 634249993777 is a prime.

It is not a weakly prime, because it can be changed into another prime (634266770999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317133385496 + 317133385497.

It is an arithmetic number, because the mean of its divisors is an integer number (317133385497).

Almost surely, 2^634266770993 is an apocalyptic number.

It is an amenable number.

634266770993 is a deficient number, since it is larger than the sum of its proper divisors (1).

634266770993 is an equidigital number, since it uses as much as digits as its factorization.

634266770993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 61725888, while the sum is 62.

The spelling of 634266770993 in words is "six hundred thirty-four billion, two hundred sixty-six million, seven hundred seventy thousand, nine hundred ninety-three".