50040138434 has 64 divisors (see below), whose sum is σ = 91538657280. Its totient is φ = 20204424000.

The previous prime is 50040138433. The next prime is 50040138457. The reversal of 50040138434 is 43483104005.

It is a self number, because there is not a number n which added to its sum of digits gives 50040138434.

It is not an unprimeable number, because it can be changed into a prime (50040138431) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1571249 + ... + 1602779.

It is an arithmetic number, because the mean of its divisors is an integer number (1430291520).

Almost surely, 2^50040138434 is an apocalyptic number.

50040138434 is a deficient number, since it is larger than the sum of its proper divisors (41498518846).

50040138434 is a wasteful number, since it uses less digits than its factorization.

50040138434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31767.

The product of its (nonzero) digits is 23040, while the sum is 32.

It can be divided in two parts, 500401 and 38434, that added together give a palindrome (538835).

The spelling of 50040138434 in words is "fifty billion, forty million, one hundred thirty-eight thousand, four hundred thirty-four".