20401809286 has 8 divisors (see below), whose sum is σ = 30613640184. Its totient is φ = 10197262560.

The previous prime is 20401809277. The next prime is 20401809299. The reversal of 20401809286 is 68290810402.

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, 1814035 + ... + 1825246.

It is an arithmetic number, because the mean of its divisors is an integer number (3826705023).

Almost surely, 2^20401809286 is an apocalyptic number.

20401809286 is a deficient number, since it is larger than the sum of its proper divisors (10211830898).

20401809286 is a wasteful number, since it uses less digits than its factorization.

20401809286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3642086.

The product of its (nonzero) digits is 55296, while the sum is 40.

The spelling of 20401809286 in words is "twenty billion, four hundred one million, eight hundred nine thousand, two hundred eighty-six".