1968492905269 has 16 divisors (see below), whose sum is σ = 2277725852160. Its totient is φ = 1682411094000.

The previous prime is 1968492905233. The next prime is 1968492905339. The reversal of 1968492905269 is 9625092948691.

It is a cyclic number.

It is not a de Polignac number, because 1968492905269 - 2¹⁷ = 1968492774197 is a prime.

It is a super-2 number, since 2×1968492905269² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1968492905198 and 1968492905207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1968492905209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35921577 + ... + 35976334.

It is an arithmetic number, because the mean of its divisors is an integer number (142357865760).

Almost surely, 2^{1968492905269} is an apocalyptic number.

1968492905269 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1968492905269 is a deficient number, since it is larger than the sum of its proper divisors (309232946891).

1968492905269 is a wasteful number, since it uses less digits than its factorization.

1968492905269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71898072.

The product of its (nonzero) digits is 151165440, while the sum is 70.

The spelling of 1968492905269 in words is "one trillion, nine hundred sixty-eight billion, four hundred ninety-two million, nine hundred five thousand, two hundred sixty-nine".