20467382847 has 8 divisors (see below), whose sum is σ = 27291013680. Its totient is φ = 13644336960.

The previous prime is 20467382843. The next prime is 20467382869. The reversal of 20467382847 is 74828376402.

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

It is not a de Polignac number, because 20467382847 - 2² = 20467382843 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20467382847.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20467382843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56772 + ... + 210137.

It is an arithmetic number, because the mean of its divisors is an integer number (3411376710).

Almost surely, 2^20467382847 is an apocalyptic number.

20467382847 is a deficient number, since it is larger than the sum of its proper divisors (6823630833).

20467382847 is a wasteful number, since it uses less digits than its factorization.

20467382847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292473.

The product of its (nonzero) digits is 3612672, while the sum is 51.

The spelling of 20467382847 in words is "twenty billion, four hundred sixty-seven million, three hundred eighty-two thousand, eight hundred forty-seven".