20648487358 has 8 divisors (see below), whose sum is σ = 31497692760. Its totient is φ = 10149256440.

The previous prime is 20648487323. The next prime is 20648487361. The reversal of 20648487358 is 85378484602.

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

It is a junction number, because it is equal to n+sod(n) for n = 20648487299 and 20648487308.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87493473 + ... + 87493708.

It is an arithmetic number, because the mean of its divisors is an integer number (3937211595).

Almost surely, 2^20648487358 is an apocalyptic number.

20648487358 is a deficient number, since it is larger than the sum of its proper divisors (10849205402).

20648487358 is a wasteful number, since it uses less digits than its factorization.

20648487358 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174987242.

The product of its (nonzero) digits is 10321920, while the sum is 55.

The spelling of 20648487358 in words is "twenty billion, six hundred forty-eight million, four hundred eighty-seven thousand, three hundred fifty-eight".