94385971729 has 9 divisors (see below), whose sum is σ = 109798428027. Its totient is φ = 80900418144.

The previous prime is 94385971709. The next prime is 94385971751. The reversal of 94385971729 is 92717958349.

The square root of 94385971729 is 307223.

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., 89086131729 + 5299840000 = 298473^2 + 72800^2 .

It is not a de Polignac number, because 94385971729 - 2⁷ = 94385971601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (94385971709) 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, 2128617 + ... + 2172505.

Almost surely, 2^94385971729 is an apocalyptic number.

94385971729 is the 307223-rd square number.

94385971729 is the 153612-nd centered octagonal number.

It is an amenable number.

94385971729 is a deficient number, since it is larger than the sum of its proper divisors (15412456298).

94385971729 is an frugal number, since it uses more digits than its factorization.

94385971729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87792 (or 43896 counting only the distinct ones).

The product of its digits is 34292160, while the sum is 64.

Multiplying 94385971729 by its sum of digits (64), we get a square (6040702190656 = 2457784²).

The spelling of 94385971729 in words is "ninety-four billion, three hundred eighty-five million, nine hundred seventy-one thousand, seven hundred twenty-nine".