77857186233107 has 8 divisors (see below), whose sum is σ = 78092460394416. Its totient is φ = 77621937184512.

The previous prime is 77857186233061. The next prime is 77857186233137. The reversal of 77857186233107 is 70133268175877.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 77857186233107 - 2²⁰ = 77857185184531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77857186233137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58898 + ... + 12478695.

It is an arithmetic number, because the mean of its divisors is an integer number (9761557549302).

Almost surely, 2^{77857186233107} is an apocalyptic number.

77857186233107 is a deficient number, since it is larger than the sum of its proper divisors (235274161309).

77857186233107 is a wasteful number, since it uses less digits than its factorization.

77857186233107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12556357.

The product of its (nonzero) digits is 82978560, while the sum is 65.

The spelling of 77857186233107 in words is "seventy-seven trillion, eight hundred fifty-seven billion, one hundred eighty-six million, two hundred thirty-three thousand, one hundred seven".