78707409442 has 16 divisors (see below), whose sum is σ = 118738159200. Its totient is φ = 39128088160.

The previous prime is 78707409419. The next prime is 78707409481. The reversal of 78707409442 is 24490470787.

It is a self number, because there is not a number n which added to its sum of digits gives 78707409442.

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, 3457317 + ... + 3480007.

It is an arithmetic number, because the mean of its divisors is an integer number (7421134950).

Almost surely, 2^78707409442 is an apocalyptic number.

78707409442 is a deficient number, since it is larger than the sum of its proper divisors (40030749758).

78707409442 is a wasteful number, since it uses less digits than its factorization.

78707409442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32561.

The product of its (nonzero) digits is 3161088, while the sum is 52.

The spelling of 78707409442 in words is "seventy-eight billion, seven hundred seven million, four hundred nine thousand, four hundred forty-two".