8620548149929 has 3 divisors (see below), whose sum is σ = 8620551086007. Its totient is φ = 8620545213852.

The previous prime is 8620548149921. The next prime is 8620548149933. The reversal of 8620548149929 is 9299418450268.

The square root of 8620548149929 is 2936077.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 7191888025 + 8613356261904 = 84805^2 + 2934852^2 .

It is not a de Polignac number, because 8620548149929 - 2³ = 8620548149921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8620548149921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1468039 + ... + 4404115.

It is an arithmetic number, because the mean of its divisors is an integer number (2873517028669).

Almost surely, 2^{8620548149929} is an apocalyptic number.

8620548149929 is the 2936077-th square number.

8620548149929 is the 1468039-th centered octagonal number.

It is an amenable number.

8620548149929 is a deficient number, since it is larger than the sum of its proper divisors (2936078).

8620548149929 is an frugal number, since it uses more digits than its factorization.

8620548149929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5872154 (or 2936077 counting only the distinct ones).

The product of its (nonzero) digits is 89579520, while the sum is 67.

The spelling of 8620548149929 in words is "eight trillion, six hundred twenty billion, five hundred forty-eight million, one hundred forty-nine thousand, nine hundred twenty-nine".