78454768907 has 8 divisors (see below), whose sum is σ = 84506680320. Its totient is φ = 72622927080.

The previous prime is 78454768891. The next prime is 78454768913. The reversal of 78454768907 is 70986745487.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 78454768907 - 2⁴ = 78454768891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78454768207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55016657 + ... + 55018082.

It is an arithmetic number, because the mean of its divisors is an integer number (10563335040).

Almost surely, 2^78454768907 is an apocalyptic number.

78454768907 is a deficient number, since it is larger than the sum of its proper divisors (6051911413).

78454768907 is a wasteful number, since it uses less digits than its factorization.

78454768907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110034793.

The product of its (nonzero) digits is 94832640, while the sum is 65.

The spelling of 78454768907 in words is "seventy-eight billion, four hundred fifty-four million, seven hundred sixty-eight thousand, nine hundred seven".