1673926668 has 24 divisors (see below), whose sum is σ = 4339810160. Its totient is φ = 557975520.

The previous prime is 1673926663. The next prime is 1673926669. The reversal of 1673926668 is 8666293761.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (1673926663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7749553 + ... + 7749768.

Almost surely, 2^1673926668 is an apocalyptic number.

1673926668 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1673926668 is an abundant number, since it is smaller than the sum of its proper divisors (2665883492).

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

1673926668 is a wasteful number, since it uses less digits than its factorization.

1673926668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15499334 (or 15499326 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 54.

The square root of 1673926668 is about 40913.6489206231. The cubic root of 1673926668 is about 1187.3501445322.

The spelling of 1673926668 in words is "one billion, six hundred seventy-three million, nine hundred twenty-six thousand, six hundred sixty-eight".