20484447386 has 16 divisors (see below), whose sum is σ = 33110667744. Its totient is φ = 9448529904.

The previous prime is 20484447377. The next prime is 20484447391. The reversal of 20484447386 is 68374448402.

It is a super-2 number, since 2×20484447386² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 199820 + ... + 284423.

It is an arithmetic number, because the mean of its divisors is an integer number (2069416734).

Almost surely, 2^20484447386 is an apocalyptic number.

20484447386 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

20484447386 is a deficient number, since it is larger than the sum of its proper divisors (12626220358).

20484447386 is a wasteful number, since it uses less digits than its factorization.

20484447386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485885.

The product of its (nonzero) digits is 4128768, while the sum is 50.

The spelling of 20484447386 in words is "twenty billion, four hundred eighty-four million, four hundred forty-seven thousand, three hundred eighty-six".