78355352748 has 12 divisors (see below), whose sum is σ = 182829156440. Its totient is φ = 26118450912.

The previous prime is 78355352731. The next prime is 78355352767. The reversal of 78355352748 is 84725355387.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×78355352748² (a number of 23 digits) contains 22 as substring.

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, 3264806353 + ... + 3264806376.

Almost surely, 2^78355352748 is an apocalyptic number.

It is an amenable number.

78355352748 is an abundant number, since it is smaller than the sum of its proper divisors (104473803692).

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

78355352748 is a wasteful number, since it uses less digits than its factorization.

78355352748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6529612736 (or 6529612734 counting only the distinct ones).

The product of its digits is 28224000, while the sum is 57.

The spelling of 78355352748 in words is "seventy-eight billion, three hundred fifty-five million, three hundred fifty-two thousand, seven hundred forty-eight".