20344627471761 has 12 divisors (see below), whose sum is σ = 29386770613200. Its totient is φ = 13563045063960.

The previous prime is 20344627471759. The next prime is 20344627471849. The reversal of 20344627471761 is 16717472644302.

20344627471761 is a `hidden beast` number, since 2 + 0 + 3 + 4 + 4 + 627 + 4 + 7 + 1 + 7 + 6 + 1 = 666.

It is not a de Polignac number, because 20344627471761 - 2¹ = 20344627471759 is a prime.

It is a super-2 number, since 2×20344627471761² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20344627471698 and 20344627471707.

It is not an unprimeable number, because it can be changed into a prime (20344627471061) 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, 85690 + ... + 6379388.

It is an arithmetic number, because the mean of its divisors is an integer number (2448897551100).

Almost surely, 2^{20344627471761} is an apocalyptic number.

It is an amenable number.

20344627471761 is a deficient number, since it is larger than the sum of its proper divisors (9042143141439).

20344627471761 is a wasteful number, since it uses less digits than its factorization.

20344627471761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6652876 (or 6652873 counting only the distinct ones).

The product of its (nonzero) digits is 9483264, while the sum is 54.

The spelling of 20344627471761 in words is "twenty trillion, three hundred forty-four billion, six hundred twenty-seven million, four hundred seventy-one thousand, seven hundred sixty-one".