78933650256 has 80 divisors (see below), whose sum is σ = 226794611200. Its totient is φ = 26284995072.

The previous prime is 78933650231. The next prime is 78933650269. The reversal of 78933650256 is 65205633987.

It is a happy number.

78933650256 is a `hidden beast` number, since 7 + 8 + 9 + 336 + 50 + 256 = 666.

It is a super-3 number, since 3×78933650256³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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 15 ways as a sum of consecutive naturals, for example, 345345 + ... + 526431.

It is an arithmetic number, because the mean of its divisors is an integer number (2834932640).

Almost surely, 2^78933650256 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 78933650256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113397305600).

78933650256 is an abundant number, since it is smaller than the sum of its proper divisors (147860960944).

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

78933650256 is a wasteful number, since it uses less digits than its factorization.

78933650256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182113 (or 182101 counting only the distinct ones).

The product of its (nonzero) digits is 8164800, while the sum is 54.

The spelling of 78933650256 in words is "seventy-eight billion, nine hundred thirty-three million, six hundred fifty thousand, two hundred fifty-six".