2927280261649 has 4 divisors (see below), whose sum is σ = 2927284177636. Its totient is φ = 2927276345664.

The previous prime is 2927280261623. The next prime is 2927280261739. The reversal of 2927280261649 is 9461620827292.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 542284960000 + 2384995301649 = 736400^2 + 1544343^2 .

It is a cyclic number.

It is not a de Polignac number, because 2927280261649 - 2⁵ = 2927280261617 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2927280261593 and 2927280261602.

It is not an unprimeable number, because it can be changed into a prime (2927280241649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 449124 + ... + 2460949.

It is an arithmetic number, because the mean of its divisors is an integer number (731821044409).

Almost surely, 2^{2927280261649} is an apocalyptic number.

It is an amenable number.

2927280261649 is a deficient number, since it is larger than the sum of its proper divisors (3915987).

2927280261649 is a wasteful number, since it uses less digits than its factorization.

2927280261649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3915986.

The product of its (nonzero) digits is 10450944, while the sum is 58.

The spelling of 2927280261649 in words is "two trillion, nine hundred twenty-seven billion, two hundred eighty million, two hundred sixty-one thousand, six hundred forty-nine".