78427501110 has 192 divisors, whose sum is σ = 241495188480. Its totient is φ = 17278168320.

The previous prime is 78427501109. The next prime is 78427501127. The reversal of 78427501110 is 1110572487.

78427501110 is a `hidden beast` number, since 78 + 427 + 50 + 1 + 110 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 11524969 + ... + 11531771.

It is an arithmetic number, because the mean of its divisors is an integer number (1257787440).

Almost surely, 2^78427501110 is an apocalyptic number.

78427501110 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 78427501110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120747594240).

78427501110 is an abundant number, since it is smaller than the sum of its proper divisors (163067687370).

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

78427501110 is a wasteful number, since it uses less digits than its factorization.

78427501110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7483 (or 7480 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 36.

The spelling of 78427501110 in words is "seventy-eight billion, four hundred twenty-seven million, five hundred one thousand, one hundred ten".