20042518024 has 16 divisors (see below), whose sum is σ = 37854027900. Its totient is φ = 9948110592.

The previous prime is 20042517949. The next prime is 20042518079. The reversal of 20042518024 is 42081524002.

It can be written as a sum of positive squares in 2 ways, for example, as 19970777124 + 71740900 = 141318^2 + 8470^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20042517983 and 20042518001.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9142389 + ... + 9144580.

Almost surely, 2^20042518024 is an apocalyptic number.

It is an amenable number.

20042518024 is a deficient number, since it is larger than the sum of its proper divisors (17811509876).

20042518024 is a wasteful number, since it uses less digits than its factorization.

20042518024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18287112 (or 18287108 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 28.

The spelling of 20042518024 in words is "twenty billion, forty-two million, five hundred eighteen thousand, twenty-four".