25446896864153 has 2 divisors, whose sum is σ = 25446896864154. Its totient is φ = 25446896864152.

The previous prime is 25446896864093. The next prime is 25446896864243. The reversal of 25446896864153 is 35146869864452.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24529960389529 + 916936474624 = 4952773^2 + 957568^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25446896864153 is a prime.

It is not a weakly prime, because it can be changed into another prime (25446896860153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12723448432076 + 12723448432077.

It is an arithmetic number, because the mean of its divisors is an integer number (12723448432077).

Almost surely, 2^{25446896864153} is an apocalyptic number.

It is an amenable number.

25446896864153 is a deficient number, since it is larger than the sum of its proper divisors (1).

25446896864153 is an equidigital number, since it uses as much as digits as its factorization.

25446896864153 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1194393600, while the sum is 71.

The spelling of 25446896864153 in words is "twenty-five trillion, four hundred forty-six billion, eight hundred ninety-six million, eight hundred sixty-four thousand, one hundred fifty-three".