89780429169 has 6 divisors (see below), whose sum is σ = 129682842146. Its totient is φ = 59853619440.

The previous prime is 89780429147. The next prime is 89780429197. The reversal of 89780429169 is 96192408798.

89780429169 is a `hidden beast` number, since 89 + 78 + 0 + 429 + 1 + 69 = 666.

It can be written as a sum of positive squares in only one way, i.e., 74071065600 + 15709363569 = 272160^2 + 125337^2 .

It is not a de Polignac number, because 89780429169 - 2¹² = 89780425073 is a prime.

It is a super-2 number, since 2×89780429169² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89780429129) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4987801612 + ... + 4987801629.

Almost surely, 2^89780429169 is an apocalyptic number.

It is an amenable number.

89780429169 is a deficient number, since it is larger than the sum of its proper divisors (39902412977).

89780429169 is a wasteful number, since it uses less digits than its factorization.

89780429169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9975603247 (or 9975603244 counting only the distinct ones).

The product of its (nonzero) digits is 15676416, while the sum is 63.

The spelling of 89780429169 in words is "eighty-nine billion, seven hundred eighty million, four hundred twenty-nine thousand, one hundred sixty-nine".