9013861544 has 8 divisors (see below), whose sum is σ = 16900990410. Its totient is φ = 4506930768.

The previous prime is 9013861543. The next prime is 9013861547. The reversal of 9013861544 is 4451683109.

It can be written as a sum of positive squares in only one way, i.e., 5892404644 + 3121456900 = 76762^2 + 55870^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (9013861543) by changing a digit.

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 as a sum of consecutive naturals, namely, 563366339 + ... + 563366354.

Almost surely, 2^9013861544 is an apocalyptic number.

It is an amenable number.

9013861544 is a deficient number, since it is larger than the sum of its proper divisors (7887128866).

9013861544 is a wasteful number, since it uses less digits than its factorization.

9013861544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1126732699 (or 1126732695 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 9013861544 is about 94941.3584482548. The cubic root of 9013861544 is about 2081.1511705857.

The spelling of 9013861544 in words is "nine billion, thirteen million, eight hundred sixty-one thousand, five hundred forty-four".