2491235386268 has 18 divisors (see below), whose sum is σ = 4515179004336. Its totient is φ = 1202665357264.

The previous prime is 2491235386267. The next prime is 2491235386301. The reversal of 2491235386268 is 8626835321942.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2491235386261) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 370275380 + ... + 370282107.

Almost surely, 2^{2491235386268} is an apocalyptic number.

It is an amenable number.

2491235386268 is a deficient number, since it is larger than the sum of its proper divisors (2023943618068).

2491235386268 is a wasteful number, since it uses less digits than its factorization.

2491235386268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740557549 (or 740557518 counting only the distinct ones).

The product of its digits is 29859840, while the sum is 59.

The spelling of 2491235386268 in words is "two trillion, four hundred ninety-one billion, two hundred thirty-five million, three hundred eighty-six thousand, two hundred sixty-eight".