78394603707 has 64 divisors (see below), whose sum is σ = 133713792000. Its totient is φ = 44466153984.

The previous prime is 78394603697. The next prime is 78394603739. The reversal of 78394603707 is 70730649387.

It is a happy number.

It is not a de Polignac number, because 78394603707 - 2⁴ = 78394603691 is a prime.

It is a super-3 number, since 3×78394603707³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (78394603757) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 45870769 + ... + 45872477.

It is an arithmetic number, because the mean of its divisors is an integer number (2089278000).

Almost surely, 2^78394603707 is an apocalyptic number.

78394603707 is a deficient number, since it is larger than the sum of its proper divisors (55319188293).

78394603707 is a wasteful number, since it uses less digits than its factorization.

78394603707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3377 (or 3371 counting only the distinct ones).

The product of its (nonzero) digits is 5334336, while the sum is 54.

The spelling of 78394603707 in words is "seventy-eight billion, three hundred ninety-four million, six hundred three thousand, seven hundred seven".