78298314336 has 240 divisors, whose sum is σ = 253136778048. Its totient is φ = 23544518400.

The previous prime is 78298314323. The next prime is 78298314359. The reversal of 78298314336 is 63341389287.

78298314336 is a `hidden beast` number, since 7 + 8 + 298 + 3 + 14 + 336 = 666.

It is a super-2 number, since 2×78298314336² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3724591 + ... + 3745553.

Almost surely, 2^78298314336 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 78298314336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126568389024).

78298314336 is an abundant number, since it is smaller than the sum of its proper divisors (174838463712).

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

78298314336 is a wasteful number, since it uses less digits than its factorization.

78298314336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21127 (or 21110 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 54.

The spelling of 78298314336 in words is "seventy-eight billion, two hundred ninety-eight million, three hundred fourteen thousand, three hundred thirty-six".