78302833845 has 16 divisors (see below), whose sum is σ = 125933681472. Its totient is φ = 41545128960.

The previous prime is 78302833841. The next prime is 78302833997. The reversal of 78302833845 is 54833820387.

It is a happy number.

It is not a de Polignac number, because 78302833845 - 2² = 78302833841 is a prime.

It is a super-2 number, since 2×78302833845² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78302833841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13520911 + ... + 13526700.

It is an arithmetic number, because the mean of its divisors is an integer number (7870855092).

Almost surely, 2^78302833845 is an apocalyptic number.

It is an amenable number.

78302833845 is a deficient number, since it is larger than the sum of its proper divisors (47630847627).

78302833845 is a wasteful number, since it uses less digits than its factorization.

78302833845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27047812.

The product of its (nonzero) digits is 3870720, while the sum is 51.

The spelling of 78302833845 in words is "seventy-eight billion, three hundred two million, eight hundred thirty-three thousand, eight hundred forty-five".