4851622672261 has 2 divisors, whose sum is σ = 4851622672262. Its totient is φ = 4851622672260.

The previous prime is 4851622672217. The next prime is 4851622672271. The reversal of 4851622672261 is 1622762261584.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4824036784161 + 27585888100 = 2196369^2 + 166090^2 .

It is a cyclic number.

It is not a de Polignac number, because 4851622672261 - 2³⁵ = 4817262933893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4851622672199 and 4851622672208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4851622672271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2425811336130 + 2425811336131.

It is an arithmetic number, because the mean of its divisors is an integer number (2425811336131).

Almost surely, 2^{4851622672261} is an apocalyptic number.

It is an amenable number.

4851622672261 is a deficient number, since it is larger than the sum of its proper divisors (1).

4851622672261 is an equidigital number, since it uses as much as digits as its factorization.

4851622672261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3870720, while the sum is 52.

The spelling of 4851622672261 in words is "four trillion, eight hundred fifty-one billion, six hundred twenty-two million, six hundred seventy-two thousand, two hundred sixty-one".