672743511 has 24 divisors (see below), whose sum is σ = 1068447744. Its totient is φ = 404505360.

The previous prime is 672743497. The next prime is 672743521. The reversal of 672743511 is 115347276.

It is a happy number.

672743511 is a `hidden beast` number, since 6 + 72 + 74 + 3 + 511 = 666.

It is not a de Polignac number, because 672743511 - 2¹⁰ = 672742487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672743521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14181 + ... + 39326.

It is an arithmetic number, because the mean of its divisors is an integer number (44518656).

Almost surely, 2^672743511 is an apocalyptic number.

672743511 is a deficient number, since it is larger than the sum of its proper divisors (395704233).

672743511 is a wasteful number, since it uses less digits than its factorization.

672743511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53651 (or 53648 counting only the distinct ones).

The product of its digits is 35280, while the sum is 36.

The square root of 672743511 is about 25937.2996088645. The cubic root of 672743511 is about 876.2267466762.

The spelling of 672743511 in words is "six hundred seventy-two million, seven hundred forty-three thousand, five hundred eleven".