20383609078 has 24 divisors (see below), whose sum is σ = 35705756232. Its totient is φ = 8701830144.

The previous prime is 20383609067. The next prime is 20383609111. The reversal of 20383609078 is 87090638302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 379476 + ... + 429847.

It is an arithmetic number, because the mean of its divisors is an integer number (1487739843).

Almost surely, 2^20383609078 is an apocalyptic number.

20383609078 is a deficient number, since it is larger than the sum of its proper divisors (15322147154).

20383609078 is a wasteful number, since it uses less digits than its factorization.

20383609078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 809596 (or 809589 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 46.

The spelling of 20383609078 in words is "twenty billion, three hundred eighty-three million, six hundred nine thousand, seventy-eight".