8820457542 has 96 divisors (see below), whose sum is σ = 21542347008. Its totient is φ = 2587958208.

The previous prime is 8820457501. The next prime is 8820457543. The reversal of 8820457542 is 2457540288.

8820457542 is a `hidden beast` number, since 88 + 20 + 4 + 5 + 7 + 542 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8820457543) 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, 1865193 + ... + 1869915.

It is an arithmetic number, because the mean of its divisors is an integer number (224399448).

Almost surely, 2^8820457542 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8820457542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10771173504).

8820457542 is an abundant number, since it is smaller than the sum of its proper divisors (12721889466).

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

8820457542 is a wasteful number, since it uses less digits than its factorization.

8820457542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5114 (or 5111 counting only the distinct ones).

The product of its (nonzero) digits is 716800, while the sum is 45.

The square root of 8820457542 is about 93917.2909639114. The cubic root of 8820457542 is about 2066.1588347387.

The spelling of 8820457542 in words is "eight billion, eight hundred twenty million, four hundred fifty-seven thousand, five hundred forty-two".