18850495477 has 8 divisors (see below), whose sum is σ = 20574591840. Its totient is φ = 17128134960.

The previous prime is 18850495463. The next prime is 18850495481. The reversal of 18850495477 is 77459405881.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18850495477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18850495427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 411198 + ... + 454735.

It is an arithmetic number, because the mean of its divisors is an integer number (2571823980).

Almost surely, 2^18850495477 is an apocalyptic number.

It is an amenable number.

18850495477 is a deficient number, since it is larger than the sum of its proper divisors (1724096363).

18850495477 is a wasteful number, since it uses less digits than its factorization.

18850495477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 867923.

The product of its (nonzero) digits is 11289600, while the sum is 58.

The spelling of 18850495477 in words is "eighteen billion, eight hundred fifty million, four hundred ninety-five thousand, four hundred seventy-seven".