3655475098129 has 2 divisors, whose sum is σ = 3655475098130. Its totient is φ = 3655475098128.

The previous prime is 3655475098073. The next prime is 3655475098169. The reversal of 3655475098129 is 9218905745563.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2506291098129 + 1149184000000 = 1583127^2 + 1072000^2 .

It is a cyclic number.

It is not a de Polignac number, because 3655475098129 - 2²⁵ = 3655441543697 is a prime.

It is not a weakly prime, because it can be changed into another prime (3655475098169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1827737549064 + 1827737549065.

It is an arithmetic number, because the mean of its divisors is an integer number (1827737549065).

It is a 1-persistent number, because it is pandigital, but 2⋅3655475098129 = 7310950196258 is not.

Almost surely, 2^{3655475098129} is an apocalyptic number.

It is an amenable number.

3655475098129 is a deficient number, since it is larger than the sum of its proper divisors (1).

3655475098129 is an equidigital number, since it uses as much as digits as its factorization.

3655475098129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81648000, while the sum is 64.

The spelling of 3655475098129 in words is "three trillion, six hundred fifty-five billion, four hundred seventy-five million, ninety-eight thousand, one hundred twenty-nine".