153364843721 has 2 divisors, whose sum is σ = 153364843722. Its totient is φ = 153364843720.

The previous prime is 153364843703. The next prime is 153364843871. The reversal of 153364843721 is 127348463351.

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., 149645185600 + 3719658121 = 386840^2 + 60989^2 .

It is a cyclic number.

It is not a de Polignac number, because 153364843721 - 2⁶ = 153364843657 is a prime.

It is not a weakly prime, because it can be changed into another prime (153361843721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76682421860 + 76682421861.

It is an arithmetic number, because the mean of its divisors is an integer number (76682421861).

Almost surely, 2^153364843721 is an apocalyptic number.

It is an amenable number.

153364843721 is a deficient number, since it is larger than the sum of its proper divisors (1).

153364843721 is an equidigital number, since it uses as much as digits as its factorization.

153364843721 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1451520, while the sum is 47.

The spelling of 153364843721 in words is "one hundred fifty-three billion, three hundred sixty-four million, eight hundred forty-three thousand, seven hundred twenty-one".