87457859844 has 24 divisors (see below), whose sum is σ = 204915103008. Its totient is φ = 29031653760.

The previous prime is 87457859821. The next prime is 87457859849. The reversal of 87457859844 is 44895875478.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (87457859849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15117762 + ... + 15123545.

It is an arithmetic number, because the mean of its divisors is an integer number (8538129292).

Almost surely, 2^87457859844 is an apocalyptic number.

It is an amenable number.

87457859844 is an abundant number, since it is smaller than the sum of its proper divisors (117457243164).

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

87457859844 is a wasteful number, since it uses less digits than its factorization.

87457859844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30241555 (or 30241553 counting only the distinct ones).

The product of its digits is 361267200, while the sum is 69.

The spelling of 87457859844 in words is "eighty-seven billion, four hundred fifty-seven million, eight hundred fifty-nine thousand, eight hundred forty-four".