18950479055 has 8 divisors (see below), whose sum is σ = 23524732800. Its totient is φ = 14637611296.

The previous prime is 18950479043. The next prime is 18950479061. The reversal of 18950479055 is 55097405981.

It is a happy number.

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 18950479055 - 2⁶ = 18950478991 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18950478988 and 18950479006.

It is a congruent number.

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, 65346335 + ... + 65346624.

It is an arithmetic number, because the mean of its divisors is an integer number (2940591600).

Almost surely, 2^18950479055 is an apocalyptic number.

18950479055 is a deficient number, since it is larger than the sum of its proper divisors (4574253745).

18950479055 is a wasteful number, since it uses less digits than its factorization.

18950479055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130692993.

The product of its (nonzero) digits is 2268000, while the sum is 53.

The spelling of 18950479055 in words is "eighteen billion, nine hundred fifty million, four hundred seventy-nine thousand, fifty-five".