77730773162 has 32 divisors (see below), whose sum is σ = 135990524160. Its totient is φ = 32634725760.

The previous prime is 77730773149. The next prime is 77730773173. The reversal of 77730773162 is 26137703777.

It is a self number, because there is not a number n which added to its sum of digits gives 77730773162.

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 15 ways as a sum of consecutive naturals, for example, 92987 + ... + 405102.

It is an arithmetic number, because the mean of its divisors is an integer number (4249703880).

Almost surely, 2^77730773162 is an apocalyptic number.

77730773162 is a deficient number, since it is larger than the sum of its proper divisors (58259750998).

77730773162 is a wasteful number, since it uses less digits than its factorization.

77730773162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498326.

The product of its (nonzero) digits is 1815156, while the sum is 50.

The spelling of 77730773162 in words is "seventy-seven billion, seven hundred thirty million, seven hundred seventy-three thousand, one hundred sixty-two".