87135379604828 has 24 divisors (see below), whose sum is σ = 154114423012032. Its totient is φ = 43103010806784.

The previous prime is 87135379604809. The next prime is 87135379604909. The reversal of 87135379604828 is 82840697353178.

It is a congruent number.

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, 39357476 + ... + 41512427.

It is an arithmetic number, because the mean of its divisors is an integer number (6421434292168).

It is a 1-persistent number, because it is pandigital, but 2⋅87135379604828 = 174270759209656 is not.

Almost surely, 2^{87135379604828} is an apocalyptic number.

It is an amenable number.

87135379604828 is a deficient number, since it is larger than the sum of its proper divisors (66979043407204).

87135379604828 is a wasteful number, since it uses less digits than its factorization.

87135379604828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80872781 (or 80872779 counting only the distinct ones).

The product of its (nonzero) digits is 487710720, while the sum is 71.

The spelling of 87135379604828 in words is "eighty-seven trillion, one hundred thirty-five billion, three hundred seventy-nine million, six hundred four thousand, eight hundred twenty-eight".