29454454129 has 9 divisors (see below), whose sum is σ = 29876174859. Its totient is φ = 29038611600.

The previous prime is 29454454123. The next prime is 29454454153. The reversal of 29454454129 is 92145445492.

The square root of 29454454129 is 171623.

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

It can be written as a sum of positive squares in only one way, i.e., 16719783025 + 12734671104 = 129305^2 + 112848^2 .

It is not a de Polignac number, because 29454454129 - 2³ = 29454454121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29454454121) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 12527304 + ... + 12529654.

Almost surely, 2^29454454129 is an apocalyptic number.

29454454129 is the 171623-rd square number.

29454454129 is the 85812-nd centered octagonal number.

It is an amenable number.

29454454129 is a deficient number, since it is larger than the sum of its proper divisors (421720730).

29454454129 is an frugal number, since it uses more digits than its factorization.

29454454129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4848 (or 2424 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 49.

Multiplying 29454454129 by its sum of digits (49), we get a square (1443268252321 = 1201361²).

The spelling of 29454454129 in words is "twenty-nine billion, four hundred fifty-four million, four hundred fifty-four thousand, one hundred twenty-nine".