2783972221377 has 8 divisors (see below), whose sum is σ = 3802498644000. Its totient is φ = 1810713639840.

The previous prime is 2783972221363. The next prime is 2783972221391. The reversal of 2783972221377 is 7731222793872.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2783972221363) and next prime (2783972221391).

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

It is not a de Polignac number, because 2783972221377 - 2¹⁵ = 2783972188609 is a prime.

It is a super-2 number, since 2×2783972221377² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2783972221377.

It is not an unprimeable number, because it can be changed into a prime (2783972222377) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 11316960127 + ... + 11316960372.

It is an arithmetic number, because the mean of its divisors is an integer number (475312330500).

Almost surely, 2^{2783972221377} is an apocalyptic number.

It is an amenable number.

2783972221377 is a deficient number, since it is larger than the sum of its proper divisors (1018526422623).

2783972221377 is a wasteful number, since it uses less digits than its factorization.

2783972221377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22633920543.

The product of its digits is 24893568, while the sum is 60.

The spelling of 2783972221377 in words is "two trillion, seven hundred eighty-three billion, nine hundred seventy-two million, two hundred twenty-one thousand, three hundred seventy-seven".