78363433912 has 16 divisors (see below), whose sum is σ = 148053054600. Its totient is φ = 38882619360.

The previous prime is 78363433909. The next prime is 78363433987. The reversal of 78363433912 is 21933436387.

It is a super-2 number, since 2×78363433912² (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, 37386087 + ... + 37388182.

Almost surely, 2^78363433912 is an apocalyptic number.

It is an amenable number.

78363433912 is a deficient number, since it is larger than the sum of its proper divisors (69689620688).

78363433912 is a wasteful number, since it uses less digits than its factorization.

78363433912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74774406 (or 74774402 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 49.

The spelling of 78363433912 in words is "seventy-eight billion, three hundred sixty-three million, four hundred thirty-three thousand, nine hundred twelve".