20374818847 has 8 divisors (see below), whose sum is σ = 21312672480. Its totient is φ = 19441297920.

The previous prime is 20374818773. The next prime is 20374818859. The reversal of 20374818847 is 74881847302.

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

It is a cyclic number.

It is not a de Polignac number, because 20374818847 - 2³¹ = 18227335199 is a prime.

It is a super-3 number, since 3×20374818847³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20374818794 and 20374818803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20374818047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1073554 + ... + 1092367.

It is an arithmetic number, because the mean of its divisors is an integer number (2664084060).

Almost surely, 2^20374818847 is an apocalyptic number.

20374818847 is a deficient number, since it is larger than the sum of its proper divisors (937853633).

20374818847 is a wasteful number, since it uses less digits than its factorization.

20374818847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2166353.

The product of its (nonzero) digits is 2408448, while the sum is 52.

The spelling of 20374818847 in words is "twenty billion, three hundred seventy-four million, eight hundred eighteen thousand, eight hundred forty-seven".