11548442890 has 36 divisors (see below), whose sum is σ = 22092953526. Its totient is φ = 4345474176.

The previous prime is 11548442879. The next prime is 11548442903. The reversal of 11548442890 is 9824484511.

It can be written as a sum of positive squares in 3 ways, for example, as 11224766809 + 323676081 = 105947^2 + 17991^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11548442890.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 5776111 + ... + 5778109.

Almost surely, 2^11548442890 is an apocalyptic number.

11548442890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11548442890 is a deficient number, since it is larger than the sum of its proper divisors (10544510636).

11548442890 is an frugal number, since it uses more digits than its factorization.

11548442890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4039 (or 2023 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 46.

The spelling of 11548442890 in words is "eleven billion, five hundred forty-eight million, four hundred forty-two thousand, eight hundred ninety".