78738789330 has 96 divisors (see below), whose sum is σ = 221375441664. Its totient is φ = 19341408768.

The previous prime is 78738789323. The next prime is 78738789341. The reversal of 78738789330 is 3398783787.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 475572 + ... + 619391.

It is an arithmetic number, because the mean of its divisors is an integer number (2305994184).

Almost surely, 2^78738789330 is an apocalyptic number.

78738789330 is an abundant number, since it is smaller than the sum of its proper divisors (142636652334).

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

78738789330 is a wasteful number, since it uses less digits than its factorization.

78738789330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1095040 (or 1095037 counting only the distinct ones).

The product of its (nonzero) digits is 42674688, while the sum is 63.

The spelling of 78738789330 in words is "seventy-eight billion, seven hundred thirty-eight million, seven hundred eighty-nine thousand, three hundred thirty".