1078328812999 has 4 divisors (see below), whose sum is σ = 1141759919664. Its totient is φ = 1014897706336.

The previous prime is 1078328812997. The next prime is 1078328813041. The reversal of 1078328812999 is 9992188238701.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1078328812999 - 2¹ = 1078328812997 is a prime.

It is a super-2 number, since 2×1078328812999² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1078328812991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31715553307 + ... + 31715553340.

It is an arithmetic number, because the mean of its divisors is an integer number (285439979916).

Almost surely, 2^{1078328812999} is an apocalyptic number.

1078328812999 is a deficient number, since it is larger than the sum of its proper divisors (63431106665).

1078328812999 is an equidigital number, since it uses as much as digits as its factorization.

1078328812999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63431106664.

The product of its (nonzero) digits is 31352832, while the sum is 67.

The spelling of 1078328812999 in words is "one trillion, seventy-eight billion, three hundred twenty-eight million, eight hundred twelve thousand, nine hundred ninety-nine".