2154203373612 has 24 divisors (see below), whose sum is σ = 5245016910336. Its totient is φ = 686847452368.

The previous prime is 2154203373601. The next prime is 2154203373661. The reversal of 2154203373612 is 2163733024512.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3902542068 + ... + 3902542619.

It is an arithmetic number, because the mean of its divisors is an integer number (218542371264).

Almost surely, 2^{2154203373612} is an apocalyptic number.

It is an amenable number.

2154203373612 is an abundant number, since it is smaller than the sum of its proper divisors (3090813536724).

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

2154203373612 is a wasteful number, since it uses less digits than its factorization.

2154203373612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7805084717 (or 7805084715 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 39.

The spelling of 2154203373612 in words is "two trillion, one hundred fifty-four billion, two hundred three million, three hundred seventy-three thousand, six hundred twelve".