672053704121 has 2 divisors, whose sum is σ = 672053704122. Its totient is φ = 672053704120.

The previous prime is 672053704061. The next prime is 672053704129. The reversal of 672053704121 is 121407350276.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 386213774521 + 285839929600 = 621461^2 + 534640^2 .

It is a cyclic number.

It is not a de Polignac number, because 672053704121 - 2²⁶ = 671986595257 is a prime.

It is a super-2 number, since 2×672053704121² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (672053704129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336026852060 + 336026852061.

It is an arithmetic number, because the mean of its divisors is an integer number (336026852061).

Almost surely, 2^672053704121 is an apocalyptic number.

It is an amenable number.

672053704121 is a deficient number, since it is larger than the sum of its proper divisors (1).

672053704121 is an equidigital number, since it uses as much as digits as its factorization.

672053704121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 70560, while the sum is 38.

The spelling of 672053704121 in words is "six hundred seventy-two billion, fifty-three million, seven hundred four thousand, one hundred twenty-one".