840002674730430 has 128 divisors (see below), whose sum is σ = 2068129133199360. Its totient is φ = 218253463787520.

The previous prime is 840002674730411. The next prime is 840002674730431. The reversal of 840002674730430 is 34037476200048.

It is a self number, because there is not a number n which added to its sum of digits gives 840002674730430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (840002674730431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 429705066 + ... + 431655474.

It is an arithmetic number, because the mean of its divisors is an integer number (16157258853120).

Almost surely, 2^{840002674730430} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 840002674730430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1034064566599680).

840002674730430 is an abundant number, since it is smaller than the sum of its proper divisors (1228126458468930).

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

840002674730430 is a wasteful number, since it uses less digits than its factorization.

840002674730430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1951834.

The product of its (nonzero) digits is 2709504, while the sum is 48.

The spelling of 840002674730430 in words is "eight hundred forty trillion, two billion, six hundred seventy-four million, seven hundred thirty thousand, four hundred thirty".