18734525679 has 8 divisors (see below), whose sum is σ = 24982220160. Its totient is φ = 12488257496.

The previous prime is 18734525671. The next prime is 18734525707. The reversal of 18734525679 is 97652543781.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18734525679 - 2³ = 18734525671 is a prime.

It is a super-2 number, since 2×18734525679² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18734525671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 325539 + ... + 378740.

It is an arithmetic number, because the mean of its divisors is an integer number (3122777520).

Almost surely, 2^18734525679 is an apocalyptic number.

18734525679 is a deficient number, since it is larger than the sum of its proper divisors (6247694481).

18734525679 is an equidigital number, since it uses as much as digits as its factorization.

18734525679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 713149.

The product of its digits is 12700800, while the sum is 57.

The spelling of 18734525679 in words is "eighteen billion, seven hundred thirty-four million, five hundred twenty-five thousand, six hundred seventy-nine".