78259898304 has 560 divisors, whose sum is σ = 280884172800. Its totient is φ = 21046708224.

The previous prime is 78259898267. The next prime is 78259898341. The reversal of 78259898304 is 40389895287.

78259898304 is a `hidden beast` number, since 7 + 8 + 2 + 598 + 9 + 8 + 30 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (78259898267) and next prime (78259898341).

It is a super-2 number, since 2×78259898304² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 153752002 + ... + 153752510.

It is an arithmetic number, because the mean of its divisors is an integer number (501578880).

Almost surely, 2^78259898304 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 78259898304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140442086400).

78259898304 is an abundant number, since it is smaller than the sum of its proper divisors (202624274496).

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

78259898304 is a wasteful number, since it uses less digits than its factorization.

78259898304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 782 (or 763 counting only the distinct ones).

The product of its (nonzero) digits is 34836480, while the sum is 63.

The spelling of 78259898304 in words is "seventy-eight billion, two hundred fifty-nine million, eight hundred ninety-eight thousand, three hundred four".