78294550963520 has 112 divisors (see below), whose sum is σ = 193267303827840. Its totient is φ = 30186612946944.

The previous prime is 78294550963513. The next prime is 78294550963523. The reversal of 78294550963520 is 2536905549287.

It is a super-3 number, since 3×78294550963520³ (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78294550963523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29633660 + ... + 32167419.

Almost surely, 2^{78294550963520} is an apocalyptic number.

It is an amenable number.

78294550963520 is an abundant number, since it is smaller than the sum of its proper divisors (114972752864320).

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

78294550963520 is a wasteful number, since it uses less digits than its factorization.

78294550963520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61801240 (or 61801230 counting only the distinct ones).

The product of its (nonzero) digits is 163296000, while the sum is 65.

The spelling of 78294550963520 in words is "seventy-eight trillion, two hundred ninety-four billion, five hundred fifty million, nine hundred sixty-three thousand, five hundred twenty".