20138350046 has 16 divisors (see below), whose sum is σ = 31416755568. Its totient is φ = 9673776000.

The previous prime is 20138350033. The next prime is 20138350069. The reversal of 20138350046 is 64005383102.

It is a junction number, because it is equal to n+sod(n) for n = 20138349994 and 20138350021.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1914155 + ... + 1924646.

It is an arithmetic number, because the mean of its divisors is an integer number (1963547223).

Almost surely, 2^20138350046 is an apocalyptic number.

20138350046 is a deficient number, since it is larger than the sum of its proper divisors (11278405522).

20138350046 is a wasteful number, since it uses less digits than its factorization.

20138350046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3838907.

The product of its (nonzero) digits is 17280, while the sum is 32.

The spelling of 20138350046 in words is "twenty billion, one hundred thirty-eight million, three hundred fifty thousand, forty-six".