11934787042 has 4 divisors (see below), whose sum is σ = 17902180566. Its totient is φ = 5967393520.

The previous prime is 11934787037. The next prime is 11934787069. The reversal of 11934787042 is 24078743911.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24078743911 = 73 ⋅329845807.

It can be written as a sum of positive squares in only one way, i.e., 7922958121 + 4011828921 = 89011^2 + 63339^2 .

It is a super-2 number, since 2×11934787042² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11934786983 and 11934787001.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2983696759 + ... + 2983696762.

Almost surely, 2^11934787042 is an apocalyptic number.

11934787042 is a deficient number, since it is larger than the sum of its proper divisors (5967393524).

11934787042 is an equidigital number, since it uses as much as digits as its factorization.

11934787042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5967393523.

The product of its (nonzero) digits is 338688, while the sum is 46.

The spelling of 11934787042 in words is "eleven billion, nine hundred thirty-four million, seven hundred eighty-seven thousand, forty-two".