5446639525961 has 2 divisors, whose sum is σ = 5446639525962. Its totient is φ = 5446639525960.

The previous prime is 5446639525949. The next prime is 5446639525981. The reversal of 5446639525961 is 1695259366445.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5413463089225 + 33176436736 = 2326685^2 + 182144^2 .

It is a cyclic number.

It is not a de Polignac number, because 5446639525961 - 2⁶ = 5446639525897 is a prime.

It is not a weakly prime, because it can be changed into another prime (5446639525981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2723319762980 + 2723319762981.

It is an arithmetic number, because the mean of its divisors is an integer number (2723319762981).

Almost surely, 2^{5446639525961} is an apocalyptic number.

It is an amenable number.

5446639525961 is a deficient number, since it is larger than the sum of its proper divisors (1).

5446639525961 is an equidigital number, since it uses as much as digits as its factorization.

5446639525961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 209952000, while the sum is 65.

The spelling of 5446639525961 in words is "five trillion, four hundred forty-six billion, six hundred thirty-nine million, five hundred twenty-five thousand, nine hundred sixty-one".