492240253387 has 2 divisors, whose sum is σ = 492240253388.
Its totient is φ = 492240253386.
The previous prime is 492240253369. The next prime is 492240253451. The reversal of 492240253387 is 783352042294.
It is a weak prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-492240253387 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 492240253387.
It is not a weakly prime, because it can be changed into another prime (492240257387) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246120126693 + 246120126694.
It is an arithmetic number, because the mean of its divisors is an integer number (246120126694).
Almost surely, 2492240253387 is an apocalyptic number.
492240253387 is a deficient number, since it is larger than the sum of its proper divisors (1).
492240253387 is an equidigital number, since it uses as much as digits as its factorization.
492240253387 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 2903040, while the sum is 49.
The spelling of 492240253387 in words is "four hundred ninety-two billion, two hundred forty million, two hundred fifty-three thousand, three hundred eighty-seven".