2158650439854 has 8 divisors (see below), whose sum is σ = 4317300879720. Its totient is φ = 719550146616.

The previous prime is 2158650439853. The next prime is 2158650439871. The reversal of 2158650439854 is 4589340568512.

It is a sphenic number, since it is the product of 3 distinct primes.

2158650439854 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2158650439853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179887536649 + ... + 179887536660.

It is an arithmetic number, because the mean of its divisors is an integer number (539662609965).

Almost surely, 2^{2158650439854} is an apocalyptic number.

2158650439854 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2158650439854 is a wasteful number, since it uses less digits than its factorization.

2158650439854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359775073314.

The product of its (nonzero) digits is 41472000, while the sum is 60.

The spelling of 2158650439854 in words is "two trillion, one hundred fifty-eight billion, six hundred fifty million, four hundred thirty-nine thousand, eight hundred fifty-four".