78585872307 has 16 divisors (see below), whose sum is σ = 110956469760. Its totient is φ = 49303578752.

The previous prime is 78585872303. The next prime is 78585872347. The reversal of 78585872307 is 70327858587.

It is a cyclic number.

It is not a de Polignac number, because 78585872307 - 2² = 78585872303 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (78585872303) 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 15 ways as a sum of consecutive naturals, for example, 438994 + ... + 591512.

It is an arithmetic number, because the mean of its divisors is an integer number (6934779360).

Almost surely, 2^78585872307 is an apocalyptic number.

78585872307 is a deficient number, since it is larger than the sum of its proper divisors (32370597453).

78585872307 is a wasteful number, since it uses less digits than its factorization.

78585872307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162642.

The product of its (nonzero) digits is 26342400, while the sum is 60.

The spelling of 78585872307 in words is "seventy-eight billion, five hundred eighty-five million, eight hundred seventy-two thousand, three hundred seven".