673378011 has 6 divisors (see below), whose sum is σ = 972657140. Its totient is φ = 448918668.

The previous prime is 673377967. The next prime is 673378037. The reversal of 673378011 is 110873376.

It is not a de Polignac number, because 673378011 - 2¹³ = 673369819 is a prime.

It is a super-2 number, since 2×673378011² = 906875891396632242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (673378051) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37409881 + ... + 37409898.

Almost surely, 2^673378011 is an apocalyptic number.

673378011 is a deficient number, since it is larger than the sum of its proper divisors (299279129).

673378011 is a wasteful number, since it uses less digits than its factorization.

673378011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74819785 (or 74819782 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 673378011 is about 25949.5281459991. The cubic root of 673378011 is about 876.5021320528.

The spelling of 673378011 in words is "six hundred seventy-three million, three hundred seventy-eight thousand, eleven".