2154802564998 has 24 divisors (see below), whose sum is σ = 4669118235288. Its totient is φ = 718209160992.

The previous prime is 2154802564997. The next prime is 2154802565009. The reversal of 2154802564998 is 8994652084512.

2154802564998 is a `hidden beast` number, since 2 + 1 + 5 + 480 + 2 + 5 + 64 + 9 + 98 = 666.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2154802564997) 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, 4635415 + ... + 5079042.

It is an arithmetic number, because the mean of its divisors is an integer number (194546593137).

Almost surely, 2^{2154802564998} is an apocalyptic number.

2154802564998 is an abundant number, since it is smaller than the sum of its proper divisors (2514315670290).

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

2154802564998 is a wasteful number, since it uses less digits than its factorization.

2154802564998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9726788 (or 9726785 counting only the distinct ones).

The product of its (nonzero) digits is 49766400, while the sum is 63.

The spelling of 2154802564998 in words is "two trillion, one hundred fifty-four billion, eight hundred two million, five hundred sixty-four thousand, nine hundred ninety-eight".