20954082129 has 8 divisors (see below), whose sum is σ = 27948761952. Its totient is φ = 13964395200.

The previous prime is 20954082077. The next prime is 20954082131. The reversal of 20954082129 is 92128045902.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20954082129 - 2⁸ = 20954081873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20954082629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1238419 + ... + 1255224.

It is an arithmetic number, because the mean of its divisors is an integer number (3493595244).

Almost surely, 2^20954082129 is an apocalyptic number.

It is an amenable number.

20954082129 is a deficient number, since it is larger than the sum of its proper divisors (6994679823).

20954082129 is a wasteful number, since it uses less digits than its factorization.

20954082129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2496447.

The product of its (nonzero) digits is 103680, while the sum is 42.

The spelling of 20954082129 in words is "twenty billion, nine hundred fifty-four million, eighty-two thousand, one hundred twenty-nine".