84254247450 has 144 divisors (see below), whose sum is σ = 243825394176. Its totient is φ = 20797603200.

The previous prime is 84254247443. The next prime is 84254247457. The reversal of 84254247450 is 5474245248.

84254247450 is a `hidden beast` number, since 84 + 2 + 54 + 2 + 474 + 50 = 666.

It is an interprime number because it is at equal distance from previous prime (84254247443) and next prime (84254247457).

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 = 84254247396 and 84254247405.

It is not an unprimeable number, because it can be changed into a prime (84254247457) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 189552 + ... + 452148.

It is an arithmetic number, because the mean of its divisors is an integer number (1693231904).

Almost surely, 2^84254247450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84254247450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121912697088).

84254247450 is an abundant number, since it is smaller than the sum of its proper divisors (159571146726).

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

84254247450 is a wasteful number, since it uses less digits than its factorization.

84254247450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262669 (or 262661 counting only the distinct ones).

The product of its (nonzero) digits is 1433600, while the sum is 45.

The spelling of 84254247450 in words is "eighty-four billion, two hundred fifty-four million, two hundred forty-seven thousand, four hundred fifty".