673019448987 has 4 divisors (see below), whose sum is σ = 897359265320. Its totient is φ = 448679632656.

The previous prime is 673019448971. The next prime is 673019448991. The reversal of 673019448987 is 789844910376.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 673019448987 - 2⁴ = 673019448971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (673019448187) 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, 112169908162 + ... + 112169908167.

It is an arithmetic number, because the mean of its divisors is an integer number (224339816330).

Almost surely, 2^673019448987 is an apocalyptic number.

673019448987 is a deficient number, since it is larger than the sum of its proper divisors (224339816333).

673019448987 is a wasteful number, since it uses less digits than its factorization.

673019448987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224339816332.

The product of its (nonzero) digits is 73156608, while the sum is 66.

The spelling of 673019448987 in words is "six hundred seventy-three billion, nineteen million, four hundred forty-eight thousand, nine hundred eighty-seven".