1979355010449 has 16 divisors (see below), whose sum is σ = 2641906694592. Its totient is φ = 1318186875648.

The previous prime is 1979355010447. The next prime is 1979355010463. The reversal of 1979355010449 is 9440105539791.

It is not a de Polignac number, because 1979355010449 - 2¹ = 1979355010447 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1979355010447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66511357 + ... + 66541109.

It is an arithmetic number, because the mean of its divisors is an integer number (165119168412).

Almost surely, 2^{1979355010449} is an apocalyptic number.

It is an amenable number.

1979355010449 is a deficient number, since it is larger than the sum of its proper divisors (662551684143).

1979355010449 is a wasteful number, since it uses less digits than its factorization.

1979355010449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52256.

The product of its (nonzero) digits is 6123600, while the sum is 57.

The spelling of 1979355010449 in words is "one trillion, nine hundred seventy-nine billion, three hundred fifty-five million, ten thousand, four hundred forty-nine".