2490431321699 has 4 divisors (see below), whose sum is σ = 2621506654440. Its totient is φ = 2359355988960.

The previous prime is 2490431321681. The next prime is 2490431321747. The reversal of 2490431321699 is 9961231340942.

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 2490431321699 - 2²⁴ = 2490414544483 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2490431321699.

It is not an unprimeable number, because it can be changed into a prime (2490431321639) 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, 65537666342 + ... + 65537666379.

It is an arithmetic number, because the mean of its divisors is an integer number (655376663610).

Almost surely, 2^{2490431321699} is an apocalyptic number.

2490431321699 is a deficient number, since it is larger than the sum of its proper divisors (131075332741).

2490431321699 is a wasteful number, since it uses less digits than its factorization.

2490431321699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131075332740.

The product of its (nonzero) digits is 2519424, while the sum is 53.

The spelling of 2490431321699 in words is "two trillion, four hundred ninety billion, four hundred thirty-one million, three hundred twenty-one thousand, six hundred ninety-nine".