463840785138 has 16 divisors (see below), whose sum is σ = 976506916320. Its totient is φ = 146476037376.

The previous prime is 463840785137. The next prime is 463840785143. The reversal of 463840785138 is 831587048364.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (463840785137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2034389295 + ... + 2034389522.

It is an arithmetic number, because the mean of its divisors is an integer number (61031682270).

Almost surely, 2^463840785138 is an apocalyptic number.

463840785138 is an abundant number, since it is smaller than the sum of its proper divisors (512666131182).

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

463840785138 is a wasteful number, since it uses less digits than its factorization.

463840785138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4068778841.

The product of its (nonzero) digits is 15482880, while the sum is 57.

The spelling of 463840785138 in words is "four hundred sixty-three billion, eight hundred forty million, seven hundred eighty-five thousand, one hundred thirty-eight".