784311774342 has 48 divisors (see below), whose sum is σ = 1720142875152. Its totient is φ = 237573790720.

The previous prime is 784311774319. The next prime is 784311774343. The reversal of 784311774342 is 243477113487.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (784311774343) 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 23 ways as a sum of consecutive naturals, for example, 4485759 + ... + 4657322.

It is an arithmetic number, because the mean of its divisors is an integer number (35836309899).

Almost surely, 2^784311774342 is an apocalyptic number.

784311774342 is an abundant number, since it is smaller than the sum of its proper divisors (935831100810).

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

784311774342 is a wasteful number, since it uses less digits than its factorization.

784311774342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9143161 (or 9143132 counting only the distinct ones).

The product of its digits is 3161088, while the sum is 51.

The spelling of 784311774342 in words is "seven hundred eighty-four billion, three hundred eleven million, seven hundred seventy-four thousand, three hundred forty-two".