11938602842 has 24 divisors (see below), whose sum is σ = 18946710900. Its totient is φ = 5641161408.

The previous prime is 11938602839. The next prime is 11938602853. The reversal of 11938602842 is 24820683911.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 9570904561 + 2367698281 = 97831^2 + 48659^2 .

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 11938602793 and 11938602802.

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 in 11 ways as a sum of consecutive naturals, for example, 275084 + ... + 315512.

Almost surely, 2^11938602842 is an apocalyptic number.

11938602842 is a deficient number, since it is larger than the sum of its proper divisors (7008108058).

11938602842 is a wasteful number, since it uses less digits than its factorization.

11938602842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40878 (or 40859 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 44.

The spelling of 11938602842 in words is "eleven billion, nine hundred thirty-eight million, six hundred two thousand, eight hundred forty-two".