1634661713 has 16 divisors (see below), whose sum is σ = 1805360640. Its totient is φ = 1474070400.

The previous prime is 1634661709. The next prime is 1634661719. The reversal of 1634661713 is 3171664361.

It is a cyclic number.

It is not a de Polignac number, because 1634661713 - 2² = 1634661709 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1634661719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13181 + ... + 58677.

It is an arithmetic number, because the mean of its divisors is an integer number (112835040).

Almost surely, 2^1634661713 is an apocalyptic number.

It is an amenable number.

1634661713 is a deficient number, since it is larger than the sum of its proper divisors (170698927).

1634661713 is a wasteful number, since it uses less digits than its factorization.

1634661713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45608.

The product of its digits is 54432, while the sum is 38.

The square root of 1634661713 is about 40430.9499393719. The cubic root of 1634661713 is about 1177.9927843361.

The spelling of 1634661713 in words is "one billion, six hundred thirty-four million, six hundred sixty-one thousand, seven hundred thirteen".