77730773163 has 8 divisors (see below), whose sum is σ = 103782426768. Its totient is φ = 51749817504.

The previous prime is 77730773149. The next prime is 77730773173. The reversal of 77730773163 is 36137703777.

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

It is not a de Polignac number, because 77730773163 - 2¹⁶ = 77730707627 is a prime.

It is a super-2 number, since 2×77730773163² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (77730773143) 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, 17671920 + ... + 17676317.

It is an arithmetic number, because the mean of its divisors is an integer number (12972803346).

Almost surely, 2^77730773163 is an apocalyptic number.

77730773163 is a deficient number, since it is larger than the sum of its proper divisors (26051653605).

77730773163 is a wasteful number, since it uses less digits than its factorization.

77730773163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35348973.

The product of its (nonzero) digits is 2722734, while the sum is 51.

The spelling of 77730773163 in words is "seventy-seven billion, seven hundred thirty million, seven hundred seventy-three thousand, one hundred sixty-three".