20949536672029 has 32 divisors (see below), whose sum is σ = 25058533294080. Its totient is φ = 17124324098112.

The previous prime is 20949536672027. The next prime is 20949536672087. The reversal of 20949536672029 is 92027663594902.

It is not a de Polignac number, because 20949536672029 - 2¹ = 20949536672027 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20949536672021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 187249384 + ... + 187361230.

It is an arithmetic number, because the mean of its divisors is an integer number (783079165440).

Almost surely, 2^{20949536672029} is an apocalyptic number.

It is an amenable number.

20949536672029 is a deficient number, since it is larger than the sum of its proper divisors (4108996622051).

20949536672029 is a wasteful number, since it uses less digits than its factorization.

20949536672029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115369.

The product of its (nonzero) digits is 88179840, while the sum is 64.

The spelling of 20949536672029 in words is "twenty trillion, nine hundred forty-nine billion, five hundred thirty-six million, six hundred seventy-two thousand, twenty-nine".