1679496061905 has 24 divisors (see below), whose sum is σ = 2911156740648. Its totient is φ = 895721930496.

The previous prime is 1679496061891. The next prime is 1679496061931. The reversal of 1679496061905 is 5091606949761.

1679496061905 is a `hidden beast` number, since 1 + 6 + 7 + 9 + 4 + 9 + 6 + 0 + 619 + 0 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 51238396881 + 1628257665024 = 226359^2 + 1276032^2 .

It is not a de Polignac number, because 1679496061905 - 2²² = 1679491867601 is a prime.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 7923079 + ... + 8132291.

It is an arithmetic number, because the mean of its divisors is an integer number (121298197527).

Almost surely, 2^{1679496061905} is an apocalyptic number.

1679496061905 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1679496061905 is a deficient number, since it is larger than the sum of its proper divisors (1231660678743).

1679496061905 is a wasteful number, since it uses less digits than its factorization.

1679496061905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387617 (or 387614 counting only the distinct ones).

The product of its (nonzero) digits is 22044960, while the sum is 63.

The spelling of 1679496061905 in words is "one trillion, six hundred seventy-nine billion, four hundred ninety-six million, sixty-one thousand, nine hundred five".