6890001851 has 4 divisors (see below), whose sum is σ = 6984385512. Its totient is φ = 6795618192.

The previous prime is 6890001829. The next prime is 6890001869. The reversal of 6890001851 is 1581000986.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6890001851 - 2¹⁴ = 6889985467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6890001821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47191721 + ... + 47191866.

It is an arithmetic number, because the mean of its divisors is an integer number (1746096378).

Almost surely, 2^6890001851 is an apocalyptic number.

6890001851 is a deficient number, since it is larger than the sum of its proper divisors (94383661).

6890001851 is an equidigital number, since it uses as much as digits as its factorization.

6890001851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94383660.

The product of its (nonzero) digits is 17280, while the sum is 38.

The square root of 6890001851 is about 83006.0350275810. The cubic root of 6890001851 is about 1902.8582880635.

The spelling of 6890001851 in words is "six billion, eight hundred ninety million, one thousand, eight hundred fifty-one".