2154867486822 has 24 divisors (see below), whose sum is σ = 4795065490176. Its totient is φ = 698875941456.

The previous prime is 2154867486809. The next prime is 2154867486829. The reversal of 2154867486822 is 2286847684512.

It is a happy number.

2154867486822 is a `hidden beast` number, since 2 + 1 + 5 + 486 + 74 + 8 + 6 + 82 + 2 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 2154867486822.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2154867486829) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1617767718 + ... + 1617769049.

It is an arithmetic number, because the mean of its divisors is an integer number (199794395424).

Almost surely, 2^{2154867486822} is an apocalyptic number.

2154867486822 is an abundant number, since it is smaller than the sum of its proper divisors (2640198003354).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2154867486822 is a wasteful number, since it uses less digits than its factorization.

2154867486822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3235536812 (or 3235536809 counting only the distinct ones).

The product of its digits is 82575360, while the sum is 63.

The spelling of 2154867486822 in words is "two trillion, one hundred fifty-four billion, eight hundred sixty-seven million, four hundred eighty-six thousand, eight hundred twenty-two".