20089779674 has 8 divisors (see below), whose sum is σ = 30303020160. Its totient is φ = 9988772956.

The previous prime is 20089779673. The next prime is 20089779791. The reversal of 20089779674 is 47697798002.

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

It is not an unprimeable number, because it can be changed into a prime (20089779673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28057994 + ... + 28058709.

It is an arithmetic number, because the mean of its divisors is an integer number (3787877520).

Almost surely, 2^20089779674 is an apocalyptic number.

20089779674 is a deficient number, since it is larger than the sum of its proper divisors (10213240486).

20089779674 is a wasteful number, since it uses less digits than its factorization.

20089779674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56116884.

The product of its (nonzero) digits is 10668672, while the sum is 59.

The spelling of 20089779674 in words is "twenty billion, eighty-nine million, seven hundred seventy-nine thousand, six hundred seventy-four".