89968520018 has 8 divisors (see below), whose sum is σ = 145333763148. Its totient is φ = 41523932304.

The previous prime is 89968519973. The next prime is 89968520023. The reversal of 89968520018 is 81002586998.

It can be written as a sum of positive squares in 2 ways, for example, as 87703045609 + 2265474409 = 296147^2 + 47597^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1730163821 + ... + 1730163872.

Almost surely, 2^89968520018 is an apocalyptic number.

89968520018 is a deficient number, since it is larger than the sum of its proper divisors (55365243130).

89968520018 is a wasteful number, since it uses less digits than its factorization.

89968520018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3460327708.

The product of its (nonzero) digits is 2488320, while the sum is 56.

The spelling of 89968520018 in words is "eighty-nine billion, nine hundred sixty-eight million, five hundred twenty thousand, eighteen".