11261858545 has 16 divisors (see below), whose sum is σ = 15581520000. Its totient is φ = 7654074624.

The previous prime is 11261858537. The next prime is 11261858551. The reversal of 11261858545 is 54585816211.

It is a happy number.

11261858545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11261858545 - 2³ = 11261858537 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11261858495 and 11261858504.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1419795 + ... + 1427704.

It is an arithmetic number, because the mean of its divisors is an integer number (973845000).

Almost surely, 2^11261858545 is an apocalyptic number.

It is an amenable number.

11261858545 is a deficient number, since it is larger than the sum of its proper divisors (4319661455).

11261858545 is a wasteful number, since it uses less digits than its factorization.

11261858545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2847624.

The product of its digits is 384000, while the sum is 46.

The spelling of 11261858545 in words is "eleven billion, two hundred sixty-one million, eight hundred fifty-eight thousand, five hundred forty-five".