87320632640068 has 24 divisors (see below), whose sum is σ = 153084931776000. Its totient is φ = 43582083139680.

The previous prime is 87320632640009. The next prime is 87320632640107. The reversal of 87320632640068 is 86004623602378.

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, 162643933 + ... + 163179931.

It is an arithmetic number, because the mean of its divisors is an integer number (6378538824000).

Almost surely, 2^{87320632640068} is an apocalyptic number.

It is an amenable number.

87320632640068 is a deficient number, since it is larger than the sum of its proper divisors (65764299135932).

87320632640068 is a wasteful number, since it uses less digits than its factorization.

87320632640068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 608907 (or 608905 counting only the distinct ones).

The product of its (nonzero) digits is 13934592, while the sum is 55.

The spelling of 87320632640068 in words is "eighty-seven trillion, three hundred twenty billion, six hundred thirty-two million, six hundred forty thousand, sixty-eight".