20043474027981 has 8 divisors (see below), whose sum is σ = 26724661725504. Its totient is φ = 13362301174560.

The previous prime is 20043474027923. The next prime is 20043474028003. The reversal of 20043474027981 is 18972047434002.

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

It is not a de Polignac number, because 20043474027981 - 2⁹ = 20043474027469 is a prime.

It is a super-2 number, since 2×20043474027981² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20043474027911) 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, 42265 + ... + 6331566.

It is an arithmetic number, because the mean of its divisors is an integer number (3340582715688).

Almost surely, 2^{20043474027981} is an apocalyptic number.

It is an amenable number.

20043474027981 is a deficient number, since it is larger than the sum of its proper divisors (6681187697523).

20043474027981 is a wasteful number, since it uses less digits than its factorization.

20043474027981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7422051.

The product of its (nonzero) digits is 2709504, while the sum is 51.

The spelling of 20043474027981 in words is "twenty trillion, forty-three billion, four hundred seventy-four million, twenty-seven thousand, nine hundred eighty-one".