1926925668 has 18 divisors (see below), whose sum is σ = 4870839974. Its totient is φ = 642308544.

The previous prime is 1926925631. The next prime is 1926925681. The reversal of 1926925668 is 8665296291.

It is a happy number.

1926925668 is a `hidden beast` number, since 19 + 2 + 69 + 2 + 566 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1821411684 + 105513984 = 42678^2 + 10272^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 26762821 + ... + 26762892.

Almost surely, 2^1926925668 is an apocalyptic number.

1926925668 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1926925668 is an abundant number, since it is smaller than the sum of its proper divisors (2943914306).

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

1926925668 is a wasteful number, since it uses less digits than its factorization.

1926925668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53525723 (or 53525718 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 54.

The square root of 1926925668 is about 43896.7614750792. The cubic root of 1926925668 is about 1244.3856300069.

The spelling of 1926925668 in words is "one billion, nine hundred twenty-six million, nine hundred twenty-five thousand, six hundred sixty-eight".