78328257148 has 24 divisors (see below), whose sum is σ = 138520255328. Its totient is φ = 38751673536.

The previous prime is 78328257127. The next prime is 78328257157. The reversal of 78328257148 is 84175282387.

It is a super-2 number, since 2×78328257148² (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 7 ways as a sum of consecutive naturals, for example, 421390 + ... + 578122.

Almost surely, 2^78328257148 is an apocalyptic number.

It is an amenable number.

78328257148 is a deficient number, since it is larger than the sum of its proper divisors (60191998180).

78328257148 is a wasteful number, since it uses less digits than its factorization.

78328257148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158053 (or 158051 counting only the distinct ones).

The product of its digits is 6021120, while the sum is 55.

The spelling of 78328257148 in words is "seventy-eight billion, three hundred twenty-eight million, two hundred fifty-seven thousand, one hundred forty-eight".