77670538706 has 16 divisors (see below), whose sum is σ = 124246573920. Its totient is φ = 36287883840.

The previous prime is 77670538669. The next prime is 77670538711. The reversal of 77670538706 is 60783507677.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 8212640 + ... + 8222091.

It is an arithmetic number, because the mean of its divisors is an integer number (7765410870).

Almost surely, 2^77670538706 is an apocalyptic number.

77670538706 is a deficient number, since it is larger than the sum of its proper divisors (46576035214).

77670538706 is a wasteful number, since it uses less digits than its factorization.

77670538706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16434889.

The product of its (nonzero) digits is 10372320, while the sum is 56.

The spelling of 77670538706 in words is "seventy-seven billion, six hundred seventy million, five hundred thirty-eight thousand, seven hundred six".