20203771994 has 8 divisors (see below), whose sum is σ = 34635037728. Its totient is φ = 8658759420.

The previous prime is 20203771963. The next prime is 20203772003. The reversal of 20203771994 is 49917730202.

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

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, 721563272 + ... + 721563299.

It is an arithmetic number, because the mean of its divisors is an integer number (4329379716).

Almost surely, 2^20203771994 is an apocalyptic number.

20203771994 is a deficient number, since it is larger than the sum of its proper divisors (14431265734).

20203771994 is a wasteful number, since it uses less digits than its factorization.

20203771994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1443126580.

The product of its (nonzero) digits is 190512, while the sum is 44.

The spelling of 20203771994 in words is "twenty billion, two hundred three million, seven hundred seventy-one thousand, nine hundred ninety-four".