492854188121 has 4 divisors (see below), whose sum is σ = 496161934500. Its totient is φ = 489546441744.

The previous prime is 492854188069. The next prime is 492854188129. The reversal of 492854188121 is 121881458294.

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

It can be written as a sum of positive squares in 2 ways, for example, as 204248859721 + 288605328400 = 451939^2 + 537220^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-492854188121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (492854188129) 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, 1653872966 + ... + 1653873263.

It is an arithmetic number, because the mean of its divisors is an integer number (124040483625).

Almost surely, 2^492854188121 is an apocalyptic number.

It is an amenable number.

492854188121 is a deficient number, since it is larger than the sum of its proper divisors (3307746379).

492854188121 is a wasteful number, since it uses less digits than its factorization.

492854188121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3307746378.

The product of its digits is 1474560, while the sum is 53.

The spelling of 492854188121 in words is "four hundred ninety-two billion, eight hundred fifty-four million, one hundred eighty-eight thousand, one hundred twenty-one".