11578479618 has 16 divisors (see below), whose sum is σ = 23231422656. Its totient is φ = 3847082640.

The previous prime is 11578479617. The next prime is 11578479641. The reversal of 11578479618 is 81697487511.

It is a super-2 number, since 2×11578479618² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11578479613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3100621 + ... + 3104352.

It is an arithmetic number, because the mean of its divisors is an integer number (1451963916).

Almost surely, 2^11578479618 is an apocalyptic number.

11578479618 is an abundant number, since it is smaller than the sum of its proper divisors (11652943038).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11578479618 is a wasteful number, since it uses less digits than its factorization.

11578479618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6205289.

The product of its digits is 3386880, while the sum is 57.

The spelling of 11578479618 in words is "eleven billion, five hundred seventy-eight million, four hundred seventy-nine thousand, six hundred eighteen".