2492645340197 has 4 divisors (see below), whose sum is σ = 2578598627820. Its totient is φ = 2406692052576.

The previous prime is 2492645340191. The next prime is 2492645340221. The reversal of 2492645340197 is 7910435462942.

It is a happy number.

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 851866237156 + 1640779103041 = 922966^2 + 1280929^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2492645340197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2492645340191) 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, 42976643768 + ... + 42976643825.

It is an arithmetic number, because the mean of its divisors is an integer number (644649656955).

Almost surely, 2^{2492645340197} is an apocalyptic number.

It is an amenable number.

2492645340197 is a deficient number, since it is larger than the sum of its proper divisors (85953287623).

2492645340197 is an equidigital number, since it uses as much as digits as its factorization.

2492645340197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85953287622.

The product of its (nonzero) digits is 13063680, while the sum is 56.

The spelling of 2492645340197 in words is "two trillion, four hundred ninety-two billion, six hundred forty-five million, three hundred forty thousand, one hundred ninety-seven".