63690579579 has 32 divisors (see below), whose sum is σ = 93494193408. Its totient is φ = 38246400000.

The previous prime is 63690579571. The next prime is 63690579583. The reversal of 63690579579 is 97597509636.

It is not a de Polignac number, because 63690579579 - 2³ = 63690579571 is a prime.

63690579579 is a modest number, since divided by 579579 gives 63690 as remainder.

It is not an unprimeable number, because it can be changed into a prime (63690579571) 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 31 ways as a sum of consecutive naturals, for example, 1578699 + ... + 1618539.

It is an arithmetic number, because the mean of its divisors is an integer number (2921693544).

Almost surely, 2^63690579579 is an apocalyptic number.

63690579579 is a deficient number, since it is larger than the sum of its proper divisors (29803613829).

63690579579 is a wasteful number, since it uses less digits than its factorization.

63690579579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40299.

The product of its (nonzero) digits is 96446700, while the sum is 66.

The spelling of 63690579579 in words is "sixty-three billion, six hundred ninety million, five hundred seventy-nine thousand, five hundred seventy-nine".