153799989779 has 2 divisors, whose sum is σ = 153799989780. Its totient is φ = 153799989778.

The previous prime is 153799989751. The next prime is 153799989803. The reversal of 153799989779 is 977989997351.

153799989779 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-153799989779 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 153799989697 and 153799989706.

It is not a weakly prime, because it can be changed into another prime (153799689779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76899994889 + 76899994890.

It is an arithmetic number, because the mean of its divisors is an integer number (76899994890).

Almost surely, 2^153799989779 is an apocalyptic number.

153799989779 is a deficient number, since it is larger than the sum of its proper divisors (1).

153799989779 is an equidigital number, since it uses as much as digits as its factorization.

153799989779 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2430456840, while the sum is 83.

The spelling of 153799989779 in words is "one hundred fifty-three billion, seven hundred ninety-nine million, nine hundred eighty-nine thousand, seven hundred seventy-nine".