78541956944 has 20 divisors (see below), whose sum is σ = 166009136640. Its totient is φ = 35700889440.

The previous prime is 78541956943. The next prime is 78541956959. The reversal of 78541956944 is 44965914587.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78541956943) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 223130384 + ... + 223130735.

It is an arithmetic number, because the mean of its divisors is an integer number (8300456832).

Almost surely, 2^78541956944 is an apocalyptic number.

It is an amenable number.

78541956944 is an abundant number, since it is smaller than the sum of its proper divisors (87467179696).

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

78541956944 is a wasteful number, since it uses less digits than its factorization.

78541956944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446261138 (or 446261132 counting only the distinct ones).

The product of its digits is 43545600, while the sum is 62.

The spelling of 78541956944 in words is "seventy-eight billion, five hundred forty-one million, nine hundred fifty-six thousand, nine hundred forty-four".