319424554987 has 4 divisors (see below), whose sum is σ = 319440523120. Its totient is φ = 319408586856.

The previous prime is 319424554973. The next prime is 319424554991. The reversal of 319424554987 is 789455424913.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 789455424913 = 3533 ⋅223451861.

It is a cyclic number.

It is not a de Polignac number, because 319424554987 - 2¹¹ = 319424552939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (319424554907) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7954023 + ... + 7994080.

It is an arithmetic number, because the mean of its divisors is an integer number (79860130780).

Almost surely, 2^319424554987 is an apocalyptic number.

319424554987 is a deficient number, since it is larger than the sum of its proper divisors (15968133).

319424554987 is a wasteful number, since it uses less digits than its factorization.

319424554987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15968132.

The product of its digits is 43545600, while the sum is 61.

The spelling of 319424554987 in words is "three hundred nineteen billion, four hundred twenty-four million, five hundred fifty-four thousand, nine hundred eighty-seven".