77667670071 has 32 divisors (see below), whose sum is σ = 121372416000. Its totient is φ = 48950702784.

The previous prime is 77667670057. The next prime is 77667670111. The reversal of 77667670071 is 17007676677.

It is not a de Polignac number, because 77667670071 - 2⁷ = 77667669943 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77667677071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 87691 + ... + 403763.

It is an arithmetic number, because the mean of its divisors is an integer number (3792888000).

Almost surely, 2^77667670071 is an apocalyptic number.

77667670071 is a deficient number, since it is larger than the sum of its proper divisors (43704745929).

77667670071 is a wasteful number, since it uses less digits than its factorization.

77667670071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316580 (or 316574 counting only the distinct ones).

The product of its (nonzero) digits is 3630312, while the sum is 54.

The spelling of 77667670071 in words is "seventy-seven billion, six hundred sixty-seven million, six hundred seventy thousand, seventy-one".