45475816129 has 2 divisors, whose sum is σ = 45475816130. Its totient is φ = 45475816128.

The previous prime is 45475816121. The next prime is 45475816147. The reversal of 45475816129 is 92161857454.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44372579904 + 1103236225 = 210648^2 + 33215^2 .

It is a cyclic number.

It is not a de Polignac number, because 45475816129 - 2³ = 45475816121 is a prime.

It is not a weakly prime, because it can be changed into another prime (45475816121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22737908064 + 22737908065.

It is an arithmetic number, because the mean of its divisors is an integer number (22737908065).

Almost surely, 2^45475816129 is an apocalyptic number.

It is an amenable number.

45475816129 is a deficient number, since it is larger than the sum of its proper divisors (1).

45475816129 is an equidigital number, since it uses as much as digits as its factorization.

45475816129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2419200, while the sum is 52.

The spelling of 45475816129 in words is "forty-five billion, four hundred seventy-five million, eight hundred sixteen thousand, one hundred twenty-nine".