78518140459000 has 128 divisors (see below), whose sum is σ = 200460699391680. Its totient is φ = 28548446976000.

The previous prime is 78518140458971. The next prime is 78518140459093. The reversal of 78518140459000 is 95404181587.

It is a super-2 number, since 2×78518140459000² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 87476484 + ... + 88369516.

Almost surely, 2^{78518140459000} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78518140459000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100230349695840).

78518140459000 is an abundant number, since it is smaller than the sum of its proper divisors (121942558932680).

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

78518140459000 is a wasteful number, since it uses less digits than its factorization.

78518140459000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 901058 (or 901044 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 52.

The spelling of 78518140459000 in words is "seventy-eight trillion, five hundred eighteen billion, one hundred forty million, four hundred fifty-nine thousand".