78831851344 has 20 divisors (see below), whose sum is σ = 154670090560. Its totient is φ = 38916989280.

The previous prime is 78831851341. The next prime is 78831851347. The reversal of 78831851344 is 44315813887.

It is an interprime number because it is at equal distance from previous prime (78831851341) and next prime (78831851347).

It is a junction number, because it is equal to n+sod(n) for n = 78831851291 and 78831851300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78831851341) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 31182222 + ... + 31184749.

It is an arithmetic number, because the mean of its divisors is an integer number (7733504528).

Almost surely, 2^78831851344 is an apocalyptic number.

It is an amenable number.

78831851344 is a deficient number, since it is larger than the sum of its proper divisors (75838239216).

78831851344 is a wasteful number, since it uses less digits than its factorization.

78831851344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62367058 (or 62367052 counting only the distinct ones).

The product of its digits is 2580480, while the sum is 52.

The spelling of 78831851344 in words is "seventy-eight billion, eight hundred thirty-one million, eight hundred fifty-one thousand, three hundred forty-four".