20040018602878 has 8 divisors (see below), whose sum is σ = 30091770280872. Its totient is φ = 10009428509256.

The previous prime is 20040018602843. The next prime is 20040018602897. The reversal of 20040018602878 is 87820681004002.

It is a happy number.

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

It is a congruent number.

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, 5290393725 + ... + 5290397512.

It is an arithmetic number, because the mean of its divisors is an integer number (3761471285109).

Almost surely, 2^{20040018602878} is an apocalyptic number.

20040018602878 is a deficient number, since it is larger than the sum of its proper divisors (10051751677994).

20040018602878 is a wasteful number, since it uses less digits than its factorization.

20040018602878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10580792186.

The product of its (nonzero) digits is 344064, while the sum is 46.

The spelling of 20040018602878 in words is "twenty trillion, forty billion, eighteen million, six hundred two thousand, eight hundred seventy-eight".