84643921350 has 96 divisors (see below), whose sum is σ = 239544980640. Its totient is φ = 21961653120.

The previous prime is 84643921301. The next prime is 84643921357. The reversal of 84643921350 is 5312934648.

84643921350 is a `hidden beast` number, since 84 + 6 + 439 + 2 + 135 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 84643921296 and 84643921305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84643921357) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 797337 + ... + 897236.

It is an arithmetic number, because the mean of its divisors is an integer number (2495260215).

Almost surely, 2^84643921350 is an apocalyptic number.

84643921350 is an abundant number, since it is smaller than the sum of its proper divisors (154901059290).

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

84643921350 is a wasteful number, since it uses less digits than its factorization.

84643921350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1694631 (or 1694620 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The spelling of 84643921350 in words is "eighty-four billion, six hundred forty-three million, nine hundred twenty-one thousand, three hundred fifty".