1642118079 has 8 divisors (see below), whose sum is σ = 2502275200. Its totient is φ = 938353176.

The previous prime is 1642118063. The next prime is 1642118083. The reversal of 1642118079 is 9708112461.

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

It is not a de Polignac number, because 1642118079 - 2⁴ = 1642118063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1642118059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39098029 + ... + 39098070.

It is an arithmetic number, because the mean of its divisors is an integer number (312784400).

Almost surely, 2^1642118079 is an apocalyptic number.

1642118079 is a deficient number, since it is larger than the sum of its proper divisors (860157121).

1642118079 is an equidigital number, since it uses as much as digits as its factorization.

1642118079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78196109.

The product of its (nonzero) digits is 24192, while the sum is 39.

The square root of 1642118079 is about 40523.0561409181. The cubic root of 1642118079 is about 1179.7811714771.

The spelling of 1642118079 in words is "one billion, six hundred forty-two million, one hundred eighteen thousand, seventy-nine".