4661529128969 has 2 divisors, whose sum is σ = 4661529128970. Its totient is φ = 4661529128968.

The previous prime is 4661529128951. The next prime is 4661529128999. The reversal of 4661529128969 is 9698219251664.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4516815078400 + 144714050569 = 2125280^2 + 380413^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4661529128969 is a prime.

It is a super-2 number, since 2×4661529128969² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4661529128899 and 4661529128908.

It is not a weakly prime, because it can be changed into another prime (4661529128999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2330764564484 + 2330764564485.

It is an arithmetic number, because the mean of its divisors is an integer number (2330764564485).

Almost surely, 2^{4661529128969} is an apocalyptic number.

It is an amenable number.

4661529128969 is a deficient number, since it is larger than the sum of its proper divisors (1).

4661529128969 is an equidigital number, since it uses as much as digits as its factorization.

4661529128969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 100776960, while the sum is 68.

The spelling of 4661529128969 in words is "four trillion, six hundred sixty-one billion, five hundred twenty-nine million, one hundred twenty-eight thousand, nine hundred sixty-nine".