87284453540 has 24 divisors (see below), whose sum is σ = 194079550392. Its totient is φ = 32860029440.

The previous prime is 87284453507. The next prime is 87284453569. The reversal of 87284453540 is 4535448278.

It can be written as a sum of positive squares in 4 ways, for example, as 24131758336 + 63152695204 = 155344^2 + 251302^2 .

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, 128359151 + ... + 128359830.

It is an arithmetic number, because the mean of its divisors is an integer number (8086647933).

Almost surely, 2^87284453540 is an apocalyptic number.

It is an amenable number.

87284453540 is an abundant number, since it is smaller than the sum of its proper divisors (106795096852).

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

87284453540 is a wasteful number, since it uses less digits than its factorization.

87284453540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256719007 (or 256719005 counting only the distinct ones).

The product of its (nonzero) digits is 4300800, while the sum is 50.

The spelling of 87284453540 in words is "eighty-seven billion, two hundred eighty-four million, four hundred fifty-three thousand, five hundred forty".