2851900861 has 8 divisors (see below), whose sum is σ = 2950872480. Its totient is φ = 2752971312.

The previous prime is 2851900859. The next prime is 2851900871. The reversal of 2851900861 is 1680091582.

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 2851900861 - 2¹ = 2851900859 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2851900871) 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, 197266 + ... + 211228.

It is an arithmetic number, because the mean of its divisors is an integer number (368859060).

Almost surely, 2^2851900861 is an apocalyptic number.

It is an amenable number.

2851900861 is a deficient number, since it is larger than the sum of its proper divisors (98971619).

2851900861 is a wasteful number, since it uses less digits than its factorization.

2851900861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21035.

The product of its (nonzero) digits is 34560, while the sum is 40.

The square root of 2851900861 is about 53403.1914870263. The cubic root of 2851900861 is about 1418.1150783934.

The spelling of 2851900861 in words is "two billion, eight hundred fifty-one million, nine hundred thousand, eight hundred sixty-one".