20042692418 has 16 divisors (see below), whose sum is σ = 35157946560. Its totient is φ = 8389964016.

The previous prime is 20042692391. The next prime is 20042692489. The reversal of 20042692418 is 81429624002.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16646153 + ... + 16647356.

It is an arithmetic number, because the mean of its divisors is an integer number (2197371660).

Almost surely, 2^20042692418 is an apocalyptic number.

20042692418 is a deficient number, since it is larger than the sum of its proper divisors (15115254142).

20042692418 is a wasteful number, since it uses less digits than its factorization.

20042692418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33293561.

The product of its (nonzero) digits is 55296, while the sum is 38.

The spelling of 20042692418 in words is "twenty billion, forty-two million, six hundred ninety-two thousand, four hundred eighteen".