88728324129 has 45 divisors (see below), whose sum is σ = 138654508993. Its totient is φ = 56541061368.

The previous prime is 88728324109. The next prime is 88728324163. The reversal of 88728324129 is 92142382788.

The square root of 88728324129 is 297873.

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

88728324129 is a `hidden beast` number, since 88 + 72 + 83 + 2 + 412 + 9 = 666.

It is not a de Polignac number, because 88728324129 - 2³¹ = 86580840481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (88728324109) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 61658992 + ... + 61660430.

Almost surely, 2^88728324129 is an apocalyptic number.

88728324129 is the 297873-rd square number.

88728324129 is the 148937-th centered octagonal number.

It is an amenable number.

88728324129 is a deficient number, since it is larger than the sum of its proper divisors (49926184864).

88728324129 is an frugal number, since it uses more digits than its factorization.

88728324129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2936 (or 1465 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 54.

The spelling of 88728324129 in words is "eighty-eight billion, seven hundred twenty-eight million, three hundred twenty-four thousand, one hundred twenty-nine".