11115842689490 has 64 divisors (see below), whose sum is σ = 25015170539520. Its totient is φ = 3455027240640.

The previous prime is 11115842689429. The next prime is 11115842689517. The reversal of 11115842689490 is 9498624851111.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19829642 + ... + 20382501.

It is an arithmetic number, because the mean of its divisors is an integer number (390862039680).

Almost surely, 2^{11115842689490} is an apocalyptic number.

11115842689490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11115842689490 is an abundant number, since it is smaller than the sum of its proper divisors (13899327850030).

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

11115842689490 is a wasteful number, since it uses less digits than its factorization.

11115842689490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40212527.

The product of its (nonzero) digits is 4976640, while the sum is 59.

The spelling of 11115842689490 in words is "eleven trillion, one hundred fifteen billion, eight hundred forty-two million, six hundred eighty-nine thousand, four hundred ninety".