79963984609935 has 32 divisors (see below), whose sum is σ = 129413993200128. Its totient is φ = 42158390075520.

The previous prime is 79963984609931. The next prime is 79963984609961. The reversal of 79963984609935 is 53990648936997.

It is a happy number.

It is not a de Polignac number, because 79963984609935 - 2² = 79963984609931 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79963984609931) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45095196 + ... + 46834865.

It is an arithmetic number, because the mean of its divisors is an integer number (4044187287504).

Almost surely, 2^{79963984609935} is an apocalyptic number.

79963984609935 is a deficient number, since it is larger than the sum of its proper divisors (49450008590193).

79963984609935 is a wasteful number, since it uses less digits than its factorization.

79963984609935 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91930735.

The product of its (nonzero) digits is 21427701120, while the sum is 87.

The spelling of 79963984609935 in words is "seventy-nine trillion, nine hundred sixty-three billion, nine hundred eighty-four million, six hundred nine thousand, nine hundred thirty-five".