78801450000 has 960 divisors, whose sum is σ = 328083001344. Its totient is φ = 15840000000.

The previous prime is 78801449999. The next prime is 78801450017. The reversal of 78801450000 is 5410887.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 313949875 + ... + 313950125.

Almost surely, 2^78801450000 is an apocalyptic number.

78801450000 is a gapful number since it is divisible by the number (70) 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 78801450000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164041500672).

78801450000 is an abundant number, since it is smaller than the sum of its proper divisors (249281551344).

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

78801450000 is a wasteful number, since it uses less digits than its factorization.

78801450000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330 (or 304 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 33.

Adding to 78801450000 its reverse (5410887), we get a palindrome (78806860887).

The spelling of 78801450000 in words is "seventy-eight billion, eight hundred one million, four hundred fifty thousand".