8861954045 has 12 divisors (see below), whose sum is σ = 12370564764. Its totient is φ = 6076768320.

The previous prime is 8861954041. The next prime is 8861954077. The reversal of 8861954045 is 5404591688.

It can be written as a sum of positive squares in 2 ways, for example, as 6170730916 + 2691223129 = 78554^2 + 51877^2 .

It is not a de Polignac number, because 8861954045 - 2² = 8861954041 is a prime.

It is a super-5 number, since 5×8861954045⁵ (a number of 51 digits) contains 55555 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8861953984 and 8861954002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8861954041) by changing a digit.

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, 18085376 + ... + 18085865.

It is an arithmetic number, because the mean of its divisors is an integer number (1030880397).

Almost surely, 2^8861954045 is an apocalyptic number.

It is an amenable number.

8861954045 is a deficient number, since it is larger than the sum of its proper divisors (3508610719).

8861954045 is a wasteful number, since it uses less digits than its factorization.

8861954045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36171260 (or 36171253 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 50.

The square root of 8861954045 is about 94137.9522031364. The cubic root of 8861954045 is about 2069.3938998135.

The spelling of 8861954045 in words is "eight billion, eight hundred sixty-one million, nine hundred fifty-four thousand, forty-five".