84365238433428 has 72 divisors (see below), whose sum is σ = 213793323307200. Its totient is φ = 28051002362880.

The previous prime is 84365238433339. The next prime is 84365238433481. The reversal of 84365238433428 is 82433483256348.

84365238433428 is a `hidden beast` number, since 8 + 4 + 3 + 6 + 523 + 84 + 3 + 3 + 4 + 28 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55287873 + ... + 56793303.

It is an arithmetic number, because the mean of its divisors is an integer number (2969351712600).

Almost surely, 2^{84365238433428} is an apocalyptic number.

It is an amenable number.

84365238433428 is an abundant number, since it is smaller than the sum of its proper divisors (129428084873772).

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

84365238433428 is a wasteful number, since it uses less digits than its factorization.

84365238433428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1509357 (or 1509352 counting only the distinct ones).

The product of its digits is 318504960, while the sum is 63.

The spelling of 84365238433428 in words is "eighty-four trillion, three hundred sixty-five billion, two hundred thirty-eight million, four hundred thirty-three thousand, four hundred twenty-eight".