78108838328 has 16 divisors (see below), whose sum is σ = 146564957760. Its totient is φ = 39024849600.

The previous prime is 78108838309. The next prime is 78108838343. The reversal of 78108838328 is 82383880187.

It is a happy number.

It is a super-2 number, since 2×78108838328² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3684968 + ... + 3706103.

It is an arithmetic number, because the mean of its divisors is an integer number (9160309860).

Almost surely, 2^78108838328 is an apocalyptic number.

It is an amenable number.

78108838328 is a deficient number, since it is larger than the sum of its proper divisors (68456119432).

78108838328 is a wasteful number, since it uses less digits than its factorization.

78108838328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7392398 (or 7392394 counting only the distinct ones).

The product of its (nonzero) digits is 4128768, while the sum is 56.

The spelling of 78108838328 in words is "seventy-eight billion, one hundred eight million, eight hundred thirty-eight thousand, three hundred twenty-eight".