4781440436838 has 32 divisors (see below), whose sum is σ = 10311572979456. Its totient is φ = 1469343030048.

The previous prime is 4781440436837. The next prime is 4781440436849. The reversal of 4781440436838 is 8386340441874.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4781440436833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38884306 + ... + 39007077.

It is an arithmetic number, because the mean of its divisors is an integer number (322236655608).

Almost surely, 2^{4781440436838} is an apocalyptic number.

4781440436838 is an abundant number, since it is smaller than the sum of its proper divisors (5530132542618).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4781440436838 is a wasteful number, since it uses less digits than its factorization.

4781440436838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77892188.

The product of its (nonzero) digits is 49545216, while the sum is 60.

The spelling of 4781440436838 in words is "four trillion, seven hundred eighty-one billion, four hundred forty million, four hundred thirty-six thousand, eight hundred thirty-eight".