672289511749 has 2 divisors, whose sum is σ = 672289511750. Its totient is φ = 672289511748.

The previous prime is 672289511741. The next prime is 672289511809. The reversal of 672289511749 is 947115982276.

672289511749 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 644126630625 + 28162881124 = 802575^2 + 167818^2 .

It is a cyclic number.

It is not a de Polignac number, because 672289511749 - 2³ = 672289511741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (672289511741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336144755874 + 336144755875.

It is an arithmetic number, because the mean of its divisors is an integer number (336144755875).

Almost surely, 2^672289511749 is an apocalyptic number.

It is an amenable number.

672289511749 is a deficient number, since it is larger than the sum of its proper divisors (1).

672289511749 is an equidigital number, since it uses as much as digits as its factorization.

672289511749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15240960, while the sum is 61.

The spelling of 672289511749 in words is "six hundred seventy-two billion, two hundred eighty-nine million, five hundred eleven thousand, seven hundred forty-nine".