77800241371018 has 8 divisors (see below), whose sum is σ = 116709112217412. Its totient is φ = 38897203965216.

The previous prime is 77800241370931. The next prime is 77800241371159. The reversal of 77800241371018 is 81017314200877.

It can be written as a sum of positive squares in 2 ways, for example, as 76267961321409 + 1532280049609 = 8733153^2 + 1237853^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1458326805 + ... + 1458380152.

Almost surely, 2^{77800241371018} is an apocalyptic number.

77800241371018 is a deficient number, since it is larger than the sum of its proper divisors (38908870846394).

77800241371018 is a wasteful number, since it uses less digits than its factorization.

77800241371018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2916720296.

The product of its (nonzero) digits is 526848, while the sum is 49.

The spelling of 77800241371018 in words is "seventy-seven trillion, eight hundred billion, two hundred forty-one million, three hundred seventy-one thousand, eighteen".