1968923826 has 24 divisors (see below), whose sum is σ = 4266875964. Its totient is φ = 656173440.

The previous prime is 1968923783. The next prime is 1968923851. The reversal of 1968923826 is 6283298691.

It can be written as a sum of positive squares in 2 ways, for example, as 1644383601 + 324540225 = 40551^2 + 18015^2 .

It is a super-2 number, since 2×1968923826² = 7753322065180956552, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 121566 + ... + 136806.

Almost surely, 2^1968923826 is an apocalyptic number.

1968923826 is an abundant number, since it is smaller than the sum of its proper divisors (2297952138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1968923826 is a wasteful number, since it uses less digits than its factorization.

1968923826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22426 (or 22423 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 54.

The square root of 1968923826 is about 44372.5571271253. The cubic root of 1968923826 is about 1253.3613690694.

The spelling of 1968923826 in words is "one billion, nine hundred sixty-eight million, nine hundred twenty-three thousand, eight hundred twenty-six".