2216751977 has 8 divisors (see below), whose sum is σ = 2463903360. Its totient is φ = 1977205360.

The previous prime is 2216751973. The next prime is 2216751997. The reversal of 2216751977 is 7791576122.

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

It is a cyclic number.

It is not a de Polignac number, because 2216751977 - 2² = 2216751973 is a prime.

It is a super-4 number, since 4×2216751977⁴ (a number of 38 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2216751973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1900577 + ... + 1901742.

It is an arithmetic number, because the mean of its divisors is an integer number (307987920).

Almost surely, 2^2216751977 is an apocalyptic number.

It is an amenable number.

2216751977 is a deficient number, since it is larger than the sum of its proper divisors (247151383).

2216751977 is a wasteful number, since it uses less digits than its factorization.

2216751977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3802383.

The product of its digits is 370440, while the sum is 47.

The square root of 2216751977 is about 47082.3956166209. The cubic root of 2216751977 is about 1303.8842362841.

The spelling of 2216751977 in words is "two billion, two hundred sixteen million, seven hundred fifty-one thousand, nine hundred seventy-seven".