1671764673 has 8 divisors (see below), whose sum is σ = 2289263488. Its totient is φ = 1084387824.

The previous prime is 1671764659. The next prime is 1671764681. The reversal of 1671764673 is 3764671761.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1671764673 - 2⁵ = 1671764641 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1671764623) 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, 7530361 + ... + 7530582.

It is an arithmetic number, because the mean of its divisors is an integer number (286157936).

Almost surely, 2^1671764673 is an apocalyptic number.

It is an amenable number.

1671764673 is a deficient number, since it is larger than the sum of its proper divisors (617498815).

1671764673 is a wasteful number, since it uses less digits than its factorization.

1671764673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15060983.

The product of its digits is 889056, while the sum is 48.

The square root of 1671764673 is about 40887.2189443107. The cubic root of 1671764673 is about 1186.8387419935.

The spelling of 1671764673 in words is "one billion, six hundred seventy-one million, seven hundred sixty-four thousand, six hundred seventy-three".