20078145873 has 48 divisors (see below), whose sum is σ = 30073680000. Its totient is φ = 12900805632.

The previous prime is 20078145869. The next prime is 20078145883. The reversal of 20078145873 is 37854187002.

It is not a de Polignac number, because 20078145873 - 2² = 20078145869 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20078145883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16074753 + ... + 16076001.

It is an arithmetic number, because the mean of its divisors is an integer number (626535000).

Almost surely, 2^20078145873 is an apocalyptic number.

It is an amenable number.

20078145873 is a deficient number, since it is larger than the sum of its proper divisors (9995534127).

20078145873 is a wasteful number, since it uses less digits than its factorization.

20078145873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1878 (or 1875 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 45.

The spelling of 20078145873 in words is "twenty billion, seventy-eight million, one hundred forty-five thousand, eight hundred seventy-three".