2854921891 has 8 divisors (see below), whose sum is σ = 2882769264. Its totient is φ = 2827096320.

The previous prime is 2854921889. The next prime is 2854921957. The reversal of 2854921891 is 1981294582.

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

It is a cyclic number.

It is not a de Polignac number, because 2854921891 - 2¹ = 2854921889 is a prime.

It is a super-2 number, since 2×2854921891² = 16301158007422031762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2854921871) 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, 406651 + ... + 413611.

It is an arithmetic number, because the mean of its divisors is an integer number (360346158).

Almost surely, 2^2854921891 is an apocalyptic number.

2854921891 is a deficient number, since it is larger than the sum of its proper divisors (27847373).

2854921891 is a wasteful number, since it uses less digits than its factorization.

2854921891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10901.

The product of its digits is 414720, while the sum is 49.

The square root of 2854921891 is about 53431.4691076336. The cubic root of 2854921891 is about 1418.6156400127.

The spelling of 2854921891 in words is "two billion, eight hundred fifty-four million, nine hundred twenty-one thousand, eight hundred ninety-one".