77707811005 has 8 divisors (see below), whose sum is σ = 101726589024. Its totient is φ = 56514771600.

The previous prime is 77707810997. The next prime is 77707811113. The reversal of 77707811005 is 50011870777.

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

It is not a de Polignac number, because 77707811005 - 2³ = 77707810997 is a prime.

It is a super-2 number, since 2×77707811005² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 706434591 + ... + 706434700.

It is an arithmetic number, because the mean of its divisors is an integer number (12715823628).

Almost surely, 2^77707811005 is an apocalyptic number.

It is an amenable number.

77707811005 is a deficient number, since it is larger than the sum of its proper divisors (24018778019).

77707811005 is a wasteful number, since it uses less digits than its factorization.

77707811005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1412869307.

The product of its (nonzero) digits is 96040, while the sum is 43.

The spelling of 77707811005 in words is "seventy-seven billion, seven hundred seven million, eight hundred eleven thousand, five".