1979983284479 has 8 divisors (see below), whose sum is σ = 1995512099280. Its totient is φ = 1964472817536.

The previous prime is 1979983284463. The next prime is 1979983284527. The reversal of 1979983284479 is 9744823899791.

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

It is a cyclic number.

It is not a de Polignac number, because 1979983284479 - 2⁴ = 1979983284463 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 (1979983214479) 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, 4370252 + ... + 4801985.

It is an arithmetic number, because the mean of its divisors is an integer number (249439012410).

Almost surely, 2^{1979983284479} is an apocalyptic number.

1979983284479 is a deficient number, since it is larger than the sum of its proper divisors (15528814801).

1979983284479 is a wasteful number, since it uses less digits than its factorization.

1979983284479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9173929.

The product of its digits is 1975228416, while the sum is 80.

The spelling of 1979983284479 in words is "one trillion, nine hundred seventy-nine billion, nine hundred eighty-three million, two hundred eighty-four thousand, four hundred seventy-nine".