78377542848 has 168 divisors, whose sum is σ = 247106120976. Its totient is φ = 23750538240.

The previous prime is 78377542847. The next prime is 78377542871. The reversal of 78377542848 is 84824577387.

It is a happy number.

78377542848 is a `hidden beast` number, since 7 + 8 + 3 + 7 + 7 + 542 + 84 + 8 = 666.

It is a super-2 number, since 2×78377542848² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78377542847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 715540 + ... + 817772.

Almost surely, 2^78377542848 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 78377542848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123553060488).

78377542848 is an abundant number, since it is smaller than the sum of its proper divisors (168728578128).

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

78377542848 is a wasteful number, since it uses less digits than its factorization.

78377542848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102284 (or 102249 counting only the distinct ones).

The product of its digits is 84295680, while the sum is 63.

The spelling of 78377542848 in words is "seventy-eight billion, three hundred seventy-seven million, five hundred forty-two thousand, eight hundred forty-eight".