77038272218 has 16 divisors (see below), whose sum is σ = 120475830816. Its totient is φ = 36913465680.

The previous prime is 77038272217. The next prime is 77038272229. The reversal of 77038272218 is 81227283077.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (77038272217) 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, 8446328 + ... + 8455443.

It is an arithmetic number, because the mean of its divisors is an integer number (7529739426).

Almost surely, 2^77038272218 is an apocalyptic number.

77038272218 is a deficient number, since it is larger than the sum of its proper divisors (43437558598).

77038272218 is a wasteful number, since it uses less digits than its factorization.

77038272218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16901869.

The product of its (nonzero) digits is 526848, while the sum is 47.

The spelling of 77038272218 in words is "seventy-seven billion, thirty-eight million, two hundred seventy-two thousand, two hundred eighteen".