1979284651 has 2 divisors, whose sum is σ = 1979284652. Its totient is φ = 1979284650.

The previous prime is 1979284639. The next prime is 1979284669. The reversal of 1979284651 is 1564829791.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1979284651 - 2¹⁹ = 1978760363 is a prime.

It is not a weakly prime, because it can be changed into another prime (1979281651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 989642325 + 989642326.

It is an arithmetic number, because the mean of its divisors is an integer number (989642326).

Almost surely, 2^1979284651 is an apocalyptic number.

1979284651 is a deficient number, since it is larger than the sum of its proper divisors (1).

1979284651 is an equidigital number, since it uses as much as digits as its factorization.

1979284651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1088640, while the sum is 52.

The square root of 1979284651 is about 44489.1520597999. The cubic root of 1979284651 is about 1255.5559937054. Note that the first 3 decimals are identical.

The spelling of 1979284651 in words is "one billion, nine hundred seventy-nine million, two hundred eighty-four thousand, six hundred fifty-one".