78047944954825 has 24 divisors (see below), whose sum is σ = 97778289566720. Its totient is φ = 61793959104000.

The previous prime is 78047944954823. The next prime is 78047944954867. The reversal of 78047944954825 is 52845944974087.

It is not a de Polignac number, because 78047944954825 - 2¹ = 78047944954823 is a prime.

It is not an unprimeable number, because it can be changed into a prime (78047944954823) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 356731816 + ... + 356950534.

Almost surely, 2^{78047944954825} is an apocalyptic number.

It is an amenable number.

78047944954825 is a deficient number, since it is larger than the sum of its proper divisors (19730344611895).

78047944954825 is a wasteful number, since it uses less digits than its factorization.

78047944954825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365977 (or 365972 counting only the distinct ones).

The product of its (nonzero) digits is 3251404800, while the sum is 76.

The spelling of 78047944954825 in words is "seventy-eight trillion, forty-seven billion, nine hundred forty-four million, nine hundred fifty-four thousand, eight hundred twenty-five".