2154817410912 has 48 divisors (see below), whose sum is σ = 6284884117680. Its totient is φ = 718272470016.

The previous prime is 2154817410883. The next prime is 2154817410913. The reversal of 2154817410912 is 2190147184512.

It is a happy number.

2154817410912 is a `hidden beast` number, since 2 + 1 + 5 + 481 + 74 + 10 + 91 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2154817410913) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1246999953 + ... + 1247001680.

It is an arithmetic number, because the mean of its divisors is an integer number (130935085785).

Almost surely, 2^{2154817410912} is an apocalyptic number.

It is an amenable number.

2154817410912 is an abundant number, since it is smaller than the sum of its proper divisors (4130066706768).

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

2154817410912 is a wasteful number, since it uses less digits than its factorization.

2154817410912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2494001652 (or 2494001638 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 45.

The spelling of 2154817410912 in words is "two trillion, one hundred fifty-four billion, eight hundred seventeen million, four hundred ten thousand, nine hundred twelve".