1672828664689 has 32 divisors (see below), whose sum is σ = 2189570190080. Its totient is φ = 1240968978432.

The previous prime is 1672828664681. The next prime is 1672828664723. The reversal of 1672828664689 is 9864668282761.

It is a cyclic number.

It is not a de Polignac number, because 1672828664689 - 2³ = 1672828664681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1672828664681) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4819464 + ... + 5154889.

It is an arithmetic number, because the mean of its divisors is an integer number (68424068440).

Almost surely, 2^{1672828664689} is an apocalyptic number.

1672828664689 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1672828664689 is a deficient number, since it is larger than the sum of its proper divisors (516741525391).

1672828664689 is a wasteful number, since it uses less digits than its factorization.

1672828664689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9974489.

The product of its digits is 668860416, while the sum is 73.

The spelling of 1672828664689 in words is "one trillion, six hundred seventy-two billion, eight hundred twenty-eight million, six hundred sixty-four thousand, six hundred eighty-nine".