20834040029 has 6 divisors (see below), whose sum is σ = 22900225950. Its totient is φ = 18940036280.

The previous prime is 20834040023. The next prime is 20834040041. The reversal of 20834040029 is 92004043802.

It can be written as a sum of positive squares in only one way, i.e., 19979822500 + 854217529 = 141350^2 + 29227^2 .

It is not a de Polignac number, because 20834040029 - 2⁸ = 20834039773 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20834039977 and 20834040004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20834040023) 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, 86090954 + ... + 86091195.

It is an arithmetic number, because the mean of its divisors is an integer number (3816704325).

Almost surely, 2^20834040029 is an apocalyptic number.

It is an amenable number.

20834040029 is a deficient number, since it is larger than the sum of its proper divisors (2066185921).

20834040029 is a wasteful number, since it uses less digits than its factorization.

20834040029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172182171 (or 172182160 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The spelling of 20834040029 in words is "twenty billion, eight hundred thirty-four million, forty thousand, twenty-nine".