20329987254 has 8 divisors (see below), whose sum is σ = 40659974520. Its totient is φ = 6776662416.

The previous prime is 20329987253. The next prime is 20329987283. The reversal of 20329987254 is 45278992302.

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

20329987254 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 20329987197 and 20329987206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20329987253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1694165599 + ... + 1694165610.

It is an arithmetic number, because the mean of its divisors is an integer number (5082496815).

Almost surely, 2^20329987254 is an apocalyptic number.

20329987254 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20329987254 is a wasteful number, since it uses less digits than its factorization.

20329987254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3388331214.

The product of its (nonzero) digits is 2177280, while the sum is 51.

The spelling of 20329987254 in words is "twenty billion, three hundred twenty-nine million, nine hundred eighty-seven thousand, two hundred fifty-four".