78838115148 has 72 divisors (see below), whose sum is σ = 217637705376. Its totient is φ = 23916211200.

The previous prime is 78838115143. The next prime is 78838115149. The reversal of 78838115148 is 84151183887.

78838115148 is a `hidden beast` number, since 7 + 88 + 38 + 11 + 514 + 8 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 78838115094 and 78838115103.

It is not an unprimeable number, because it can be changed into a prime (78838115143) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1153093 + ... + 1219548.

It is an arithmetic number, because the mean of its divisors is an integer number (3022745908).

Almost surely, 2^78838115148 is an apocalyptic number.

78838115148 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is an amenable number.

78838115148 is an abundant number, since it is smaller than the sum of its proper divisors (138799590228).

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

78838115148 is a wasteful number, since it uses less digits than its factorization.

78838115148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2372735 (or 2372730 counting only the distinct ones).

The product of its digits is 1720320, while the sum is 54.

The spelling of 78838115148 in words is "seventy-eight billion, eight hundred thirty-eight million, one hundred fifteen thousand, one hundred forty-eight".