18520672035 has 8 divisors (see below), whose sum is σ = 29633075280. Its totient is φ = 9877691744.

The previous prime is 18520671991. The next prime is 18520672057. The reversal of 18520672035 is 53027602581.

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 18520672035 - 2⁷ = 18520671907 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18520671984 and 18520672002.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 617355720 + ... + 617355749.

It is an arithmetic number, because the mean of its divisors is an integer number (3704134410).

Almost surely, 2^18520672035 is an apocalyptic number.

18520672035 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18520672035 is a deficient number, since it is larger than the sum of its proper divisors (11112403245).

18520672035 is a wasteful number, since it uses less digits than its factorization.

18520672035 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1234711477.

The product of its (nonzero) digits is 100800, while the sum is 39.

The spelling of 18520672035 in words is "eighteen billion, five hundred twenty million, six hundred seventy-two thousand, thirty-five".