446778612253 has 2 divisors, whose sum is σ = 446778612254. Its totient is φ = 446778612252.

The previous prime is 446778612197. The next prime is 446778612323. The reversal of 446778612253 is 352216877644.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 271621295929 + 175157316324 = 521173^2 + 418518^2 .

It is a cyclic number.

It is not a de Polignac number, because 446778612253 - 2²⁵ = 446745057821 is a prime.

It is a super-2 number, since 2×446778612253² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 446778612194 and 446778612203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (446778612353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 223389306126 + 223389306127.

It is an arithmetic number, because the mean of its divisors is an integer number (223389306127).

Almost surely, 2^446778612253 is an apocalyptic number.

It is an amenable number.

446778612253 is a deficient number, since it is larger than the sum of its proper divisors (1).

446778612253 is an equidigital number, since it uses as much as digits as its factorization.

446778612253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13547520, while the sum is 55.

The spelling of 446778612253 in words is "four hundred forty-six billion, seven hundred seventy-eight million, six hundred twelve thousand, two hundred fifty-three".