1578867208464 has 640 divisors, whose sum is σ = 5383383441408. Its totient is φ = 387329310720.

The previous prime is 1578867208409. The next prime is 1578867208469. The reversal of 1578867208464 is 4648027688751.

It is a Smith number, since the sum of its digits (66) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1578867208395 and 1578867208404.

It is not an unprimeable number, because it can be changed into a prime (1578867208469) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2417866762 + ... + 2417867414.

Almost surely, 2^{1578867208464} is an apocalyptic number.

1578867208464 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1578867208464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2691691720704).

1578867208464 is an abundant number, since it is smaller than the sum of its proper divisors (3804516232944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1578867208464 is a wasteful number, since it uses less digits than its factorization.

1578867208464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1335 (or 1329 counting only the distinct ones).

The product of its (nonzero) digits is 144506880, while the sum is 66.

The spelling of 1578867208464 in words is "one trillion, five hundred seventy-eight billion, eight hundred sixty-seven million, two hundred eight thousand, four hundred sixty-four".