268190980699487 has 4 divisors (see below), whose sum is σ = 268296609288360. Its totient is φ = 268085352110616.

The previous prime is 268190980699459. The next prime is 268190980699573. The reversal of 268190980699487 is 784996089091862.

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 268190980699487 - 2¹⁰ = 268190980698463 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 268190980699399 and 268190980699408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268190080699487) 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, 52814290628 + ... + 52814295705.

It is an arithmetic number, because the mean of its divisors is an integer number (67074152322090).

Almost surely, 2^{268190980699487} is an apocalyptic number.

268190980699487 is a deficient number, since it is larger than the sum of its proper divisors (105628588873).

268190980699487 is a wasteful number, since it uses less digits than its factorization.

268190980699487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105628588872.

The product of its (nonzero) digits is 6772211712, while the sum is 86.

The spelling of 268190980699487 in words is "two hundred sixty-eight trillion, one hundred ninety billion, nine hundred eighty million, six hundred ninety-nine thousand, four hundred eighty-seven".