77068535851 has 8 divisors (see below), whose sum is σ = 83922181200. Its totient is φ = 70494631200.

The previous prime is 77068535849. The next prime is 77068535899. The reversal of 77068535851 is 15853586077.

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 77068535851 - 2¹ = 77068535849 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 77068535792 and 77068535801.

It is not an unprimeable number, because it can be changed into a prime (77068535651) 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, 69934600 + ... + 69935701.

It is an arithmetic number, because the mean of its divisors is an integer number (10490272650).

Almost surely, 2^77068535851 is an apocalyptic number.

77068535851 is a deficient number, since it is larger than the sum of its proper divisors (6853645349).

77068535851 is a wasteful number, since it uses less digits than its factorization.

77068535851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139870349.

The product of its (nonzero) digits is 7056000, while the sum is 55.

The spelling of 77068535851 in words is "seventy-seven billion, sixty-eight million, five hundred thirty-five thousand, eight hundred fifty-one".