90048243861 has 16 divisors (see below), whose sum is σ = 133525797120. Its totient is φ = 59977716480.

The previous prime is 90048243827. The next prime is 90048243889. The reversal of 90048243861 is 16834284009.

It is a happy number.

90048243861 is a `hidden beast` number, since 90 + 0 + 482 + 4 + 3 + 86 + 1 = 666.

It is not a de Polignac number, because 90048243861 - 2²¹ = 90046146709 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90048243361) 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 15 ways as a sum of consecutive naturals, for example, 1482060 + ... + 1541621.

It is an arithmetic number, because the mean of its divisors is an integer number (8345362320).

Almost surely, 2^90048243861 is an apocalyptic number.

It is an amenable number.

90048243861 is a deficient number, since it is larger than the sum of its proper divisors (43477553259).

90048243861 is a wasteful number, since it uses less digits than its factorization.

90048243861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3024793 (or 3024787 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The spelling of 90048243861 in words is "ninety billion, forty-eight million, two hundred forty-three thousand, eight hundred sixty-one".