2154343213500 has 48 divisors (see below), whose sum is σ = 6273447442080. Its totient is φ = 574491523200.

The previous prime is 2154343213489. The next prime is 2154343213523. The reversal of 2154343213500 is 53123434512.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 718112905 + ... + 718115904.

It is an arithmetic number, because the mean of its divisors is an integer number (130696821710).

Almost surely, 2^{2154343213500} is an apocalyptic number.

2154343213500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2154343213500 is an abundant number, since it is smaller than the sum of its proper divisors (4119104228580).

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

2154343213500 is a wasteful number, since it uses less digits than its factorization.

2154343213500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1436228831 (or 1436228819 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 33.

The spelling of 2154343213500 in words is "two trillion, one hundred fifty-four billion, three hundred forty-three million, two hundred thirteen thousand, five hundred".