153978252443 has 2 divisors, whose sum is σ = 153978252444. Its totient is φ = 153978252442.

The previous prime is 153978252427. The next prime is 153978252497. The reversal of 153978252443 is 344252879351.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 153978252443 - 2⁴ = 153978252427 is a prime.

It is not a weakly prime, because it can be changed into another prime (153975252443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76989126221 + 76989126222.

It is an arithmetic number, because the mean of its divisors is an integer number (76989126222).

Almost surely, 2^153978252443 is an apocalyptic number.

153978252443 is a deficient number, since it is larger than the sum of its proper divisors (1).

153978252443 is an equidigital number, since it uses as much as digits as its factorization.

153978252443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7257600, while the sum is 53.

The spelling of 153978252443 in words is "one hundred fifty-three billion, nine hundred seventy-eight million, two hundred fifty-two thousand, four hundred forty-three".