11578949942 has 32 divisors (see below), whose sum is σ = 21188666880. Its totient is φ = 4635005760.

The previous prime is 11578949927. The next prime is 11578949947. The reversal of 11578949942 is 24994987511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11578949947) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 287663 + ... + 325434.

It is an arithmetic number, because the mean of its divisors is an integer number (662145840).

Almost surely, 2^11578949942 is an apocalyptic number.

11578949942 is a deficient number, since it is larger than the sum of its proper divisors (9609716938).

11578949942 is a wasteful number, since it uses less digits than its factorization.

11578949942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613196.

The product of its digits is 6531840, while the sum is 59.

The spelling of 11578949942 in words is "eleven billion, five hundred seventy-eight million, nine hundred forty-nine thousand, nine hundred forty-two".