84312999510378 has 16 divisors (see below), whose sum is σ = 168844143918816. Its totient is φ = 28067975687120.

The previous prime is 84312999510349. The next prime is 84312999510547. The reversal of 84312999510378 is 87301599921348.

It is a Smith number, since the sum of its digits (69) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9089365728 + ... + 9089375003.

It is an arithmetic number, because the mean of its divisors is an integer number (10552758994926).

Almost surely, 2^{84312999510378} is an apocalyptic number.

84312999510378 is an abundant number, since it is smaller than the sum of its proper divisors (84531144408438).

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

84312999510378 is a wasteful number, since it uses less digits than its factorization.

84312999510378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18178741509.

The product of its (nonzero) digits is 117573120, while the sum is 69.

The spelling of 84312999510378 in words is "eighty-four trillion, three hundred twelve billion, nine hundred ninety-nine million, five hundred ten thousand, three hundred seventy-eight".