8451354942 has 128 divisors (see below), whose sum is σ = 20292940800. Its totient is φ = 2597557248.

The previous prime is 8451354913. The next prime is 8451354949. The reversal of 8451354942 is 2494531548.

8451354942 is a `hidden beast` number, since 84 + 51 + 35 + 494 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8451354949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 19251159 + ... + 19251597.

It is an arithmetic number, because the mean of its divisors is an integer number (158538600).

Almost surely, 2^8451354942 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8451354942, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10146470400).

8451354942 is an abundant number, since it is smaller than the sum of its proper divisors (11841585858).

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

8451354942 is a wasteful number, since it uses less digits than its factorization.

8451354942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 847 (or 841 counting only the distinct ones).

The product of its digits is 691200, while the sum is 45.

The square root of 8451354942 is about 91931.2511717316. The cubic root of 8451354942 is about 2036.9269171096.

The spelling of 8451354942 in words is "eight billion, four hundred fifty-one million, three hundred fifty-four thousand, nine hundred forty-two".