1912329668 has 6 divisors (see below), whose sum is σ = 3346576926. Its totient is φ = 956164832.

The previous prime is 1912329659. The next prime is 1912329673. The reversal of 1912329668 is 8669232191.

It can be written as a sum of positive squares in only one way, i.e., 1159266304 + 753063364 = 34048^2 + 27442^2 .

It is a super-2 number, since 2×1912329668² = 7314009518225980448, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239041205 + ... + 239041212.

It is an arithmetic number, because the mean of its divisors is an integer number (557762821).

Almost surely, 2^1912329668 is an apocalyptic number.

It is an amenable number.

1912329668 is a deficient number, since it is larger than the sum of its proper divisors (1434247258).

1912329668 is a wasteful number, since it uses less digits than its factorization.

1912329668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478082421 (or 478082419 counting only the distinct ones).

The product of its digits is 279936, while the sum is 47.

The square root of 1912329668 is about 43730.1917215098. The cubic root of 1912329668 is about 1241.2356889404.

The spelling of 1912329668 in words is "one billion, nine hundred twelve million, three hundred twenty-nine thousand, six hundred sixty-eight".