20846735748 has 36 divisors (see below), whose sum is σ = 54647618480. Its totient is φ = 6948911592.

The previous prime is 20846735747. The next prime is 20846735773. The reversal of 20846735748 is 84753764802.

20846735748 is a `hidden beast` number, since 2 + 0 + 8 + 4 + 67 + 3 + 574 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×20846735748² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 20846735694 and 20846735703.

It is not an unprimeable number, because it can be changed into a prime (20846735747) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10722658 + ... + 10724601.

Almost surely, 2^20846735748 is an apocalyptic number.

It is an amenable number.

20846735748 is an abundant number, since it is smaller than the sum of its proper divisors (33800882732).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20846735748 is a wasteful number, since it uses less digits than its factorization.

20846735748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21447278 (or 21447264 counting only the distinct ones).

The product of its (nonzero) digits is 9031680, while the sum is 54.

The spelling of 20846735748 in words is "twenty billion, eight hundred forty-six million, seven hundred thirty-five thousand, seven hundred forty-eight".