492147205919 has 4 divisors (see below), whose sum is σ = 495094195344. Its totient is φ = 489200216496.

The previous prime is 492147205873. The next prime is 492147205933. The reversal of 492147205919 is 919502741294.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 492147205919 - 2¹⁶ = 492147140383 is a prime.

It is a super-2 number, since 2×492147205919² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (492147205019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1473494462 + ... + 1473494795.

It is an arithmetic number, because the mean of its divisors is an integer number (123773548836).

Almost surely, 2^492147205919 is an apocalyptic number.

492147205919 is a deficient number, since it is larger than the sum of its proper divisors (2946989425).

492147205919 is a wasteful number, since it uses less digits than its factorization.

492147205919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2946989424.

The product of its (nonzero) digits is 1632960, while the sum is 53.

The spelling of 492147205919 in words is "four hundred ninety-two billion, one hundred forty-seven million, two hundred five thousand, nine hundred nineteen".