78898376592 has 200 divisors, whose sum is σ = 276329028096. Its totient is φ = 21216328704.

The previous prime is 78898376569. The next prime is 78898376593. The reversal of 78898376592 is 29567389887.

78898376592 is a `hidden beast` number, since 7 + 88 + 98 + 376 + 5 + 92 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a self number, because there is not a number n which added to its sum of digits gives 78898376592.

It is not an unprimeable number, because it can be changed into a prime (78898376593) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 101568 + ... + 410015.

Almost surely, 2^78898376592 is an apocalyptic number.

78898376592 is a gapful number since it is divisible by the number (72) 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 78898376592, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138164514048).

78898376592 is an abundant number, since it is smaller than the sum of its proper divisors (197430651504).

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

78898376592 is a wasteful number, since it uses less digits than its factorization.

78898376592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511627 (or 511612 counting only the distinct ones).

The product of its digits is 365783040, while the sum is 72.

The spelling of 78898376592 in words is "seventy-eight billion, eight hundred ninety-eight million, three hundred seventy-six thousand, five hundred ninety-two".