253779929129 has 16 divisors (see below), whose sum is σ = 268099735680. Its totient is φ = 239965488000.

The previous prime is 253779929119. The next prime is 253779929141. The reversal of 253779929129 is 921929977352.

It is a happy number.

253779929129 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 253779929129 - 2¹⁶ = 253779863593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253779929119) 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 in 15 ways as a sum of consecutive naturals, for example, 567062 + ... + 910559.

It is an arithmetic number, because the mean of its divisors is an integer number (16756233480).

Almost surely, 2^253779929129 is an apocalyptic number.

It is an amenable number.

253779929129 is a deficient number, since it is larger than the sum of its proper divisors (14319806551).

253779929129 is a wasteful number, since it uses less digits than its factorization.

253779929129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1477792.

The product of its digits is 38578680, while the sum is 65.

The spelling of 253779929129 in words is "two hundred fifty-three billion, seven hundred seventy-nine million, nine hundred twenty-nine thousand, one hundred twenty-nine".