78844625370 has 256 divisors, whose sum is σ = 251817984000. Its totient is φ = 17163691776.

The previous prime is 78844625369. The next prime is 78844625371. The reversal of 78844625370 is 7352644887.

78844625370 is a `hidden beast` number, since 7 + 8 + 8 + 4 + 4 + 625 + 3 + 7 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (78844625369) and next prime (78844625371).

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

It is not an unprimeable number, because it can be changed into a prime (78844625371) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 10385536 + ... + 10393124.

It is an arithmetic number, because the mean of its divisors is an integer number (983664000).

Almost surely, 2^78844625370 is an apocalyptic number.

78844625370 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 78844625370, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125908992000).

78844625370 is an abundant number, since it is smaller than the sum of its proper divisors (172973358630).

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

78844625370 is a wasteful number, since it uses less digits than its factorization.

78844625370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7874 (or 7868 counting only the distinct ones).

The product of its (nonzero) digits is 9031680, while the sum is 54.

The spelling of 78844625370 in words is "seventy-eight billion, eight hundred forty-four million, six hundred twenty-five thousand, three hundred seventy".