2154889017832 has 32 divisors (see below), whose sum is σ = 4056560138880. Its totient is φ = 1073142069120.

The previous prime is 2154889017817. The next prime is 2154889017833. The reversal of 2154889017832 is 2387109884512.

It is a super-2 number, since 2×2154889017832² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2154889017833) 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, 7054708 + ... + 7353820.

It is an arithmetic number, because the mean of its divisors is an integer number (126767504340).

Almost surely, 2^{2154889017832} is an apocalyptic number.

It is an amenable number.

2154889017832 is a deficient number, since it is larger than the sum of its proper divisors (1901671121048).

2154889017832 is a wasteful number, since it uses less digits than its factorization.

2154889017832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302713 (or 302709 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 58.

The spelling of 2154889017832 in words is "two trillion, one hundred fifty-four billion, eight hundred eighty-nine million, seventeen thousand, eight hundred thirty-two".