672456198149 has 2 divisors, whose sum is σ = 672456198150. Its totient is φ = 672456198148.

The previous prime is 672456198137. The next prime is 672456198157. The reversal of 672456198149 is 941891654276.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 497987085124 + 174469113025 = 705682^2 + 417695^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-672456198149 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 672456198091 and 672456198100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (672456198119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336228099074 + 336228099075.

It is an arithmetic number, because the mean of its divisors is an integer number (336228099075).

Almost surely, 2^672456198149 is an apocalyptic number.

It is an amenable number.

672456198149 is a deficient number, since it is larger than the sum of its proper divisors (1).

672456198149 is an equidigital number, since it uses as much as digits as its factorization.

672456198149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26127360, while the sum is 62.

The spelling of 672456198149 in words is "six hundred seventy-two billion, four hundred fifty-six million, one hundred ninety-eight thousand, one hundred forty-nine".