78123367248 has 80 divisors (see below), whose sum is σ = 203735341056. Its totient is φ = 25794478080.

The previous prime is 78123367229. The next prime is 78123367291. The reversal of 78123367248 is 84276332187.

It is a super-2 number, since 2×78123367248² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 78123367248.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3897540 + ... + 3917532.

Almost surely, 2^78123367248 is an apocalyptic number.

It is an amenable number.

78123367248 is an abundant number, since it is smaller than the sum of its proper divisors (125611973808).

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

78123367248 is a wasteful number, since it uses less digits than its factorization.

78123367248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20772 (or 20766 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 51.

The spelling of 78123367248 in words is "seventy-eight billion, one hundred twenty-three million, three hundred sixty-seven thousand, two hundred forty-eight".