78743559504 has 40 divisors (see below), whose sum is σ = 203504296320. Its totient is φ = 26237087488.

The previous prime is 78743559439. The next prime is 78743559523. The reversal of 78743559504 is 40595534787.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 217749 + ... + 452660.

It is an arithmetic number, because the mean of its divisors is an integer number (5087607408).

Almost surely, 2^78743559504 is an apocalyptic number.

It is an amenable number.

78743559504 is an abundant number, since it is smaller than the sum of its proper divisors (124760736816).

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

78743559504 is a wasteful number, since it uses less digits than its factorization.

78743559504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672867 (or 672861 counting only the distinct ones).

The product of its (nonzero) digits is 21168000, while the sum is 57.

The spelling of 78743559504 in words is "seventy-eight billion, seven hundred forty-three million, five hundred fifty-nine thousand, five hundred four".