87819442830 has 96 divisors (see below), whose sum is σ = 267313894848. Its totient is φ = 19583424000.

The previous prime is 87819442829. The next prime is 87819442853. The reversal of 87819442830 is 3824491878.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1674121 + ... + 1725780.

It is an arithmetic number, because the mean of its divisors is an integer number (2784519738).

Almost surely, 2^87819442830 is an apocalyptic number.

87819442830 is an abundant number, since it is smaller than the sum of its proper divisors (179494452018).

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

87819442830 is a wasteful number, since it uses less digits than its factorization.

87819442830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3399962 (or 3399959 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 54.

The spelling of 87819442830 in words is "eighty-seven billion, eight hundred nineteen million, four hundred forty-two thousand, eight hundred thirty".