20408784062 has 8 divisors (see below), whose sum is σ = 30620745192. Its totient is φ = 10201869000.

The previous prime is 20408784047. The next prime is 20408784107. The reversal of 20408784062 is 26048780402.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1251389 + ... + 1267592.

It is an arithmetic number, because the mean of its divisors is an integer number (3827593149).

Almost surely, 2^20408784062 is an apocalyptic number.

20408784062 is a deficient number, since it is larger than the sum of its proper divisors (10211961130).

20408784062 is a wasteful number, since it uses less digits than its factorization.

20408784062 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2523034.

The product of its (nonzero) digits is 172032, while the sum is 41.

The spelling of 20408784062 in words is "twenty billion, four hundred eight million, seven hundred eighty-four thousand, sixty-two".