1670438706018 has 32 divisors (see below), whose sum is σ = 3545842184640. Its totient is φ = 522808450560.

The previous prime is 1670438706011. The next prime is 1670438706043. The reversal of 1670438706018 is 8106078340761.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (1670438706011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19500043 + ... + 19585518.

It is an arithmetic number, because the mean of its divisors is an integer number (110807568270).

Almost surely, 2^{1670438706018} is an apocalyptic number.

1670438706018 is an abundant number, since it is smaller than the sum of its proper divisors (1875403478622).

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

1670438706018 is a wasteful number, since it uses less digits than its factorization.

1670438706018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39086002.

The product of its (nonzero) digits is 1354752, while the sum is 51.

The spelling of 1670438706018 in words is "one trillion, six hundred seventy billion, four hundred thirty-eight million, seven hundred six thousand, eighteen".