6851887402 has 16 divisors (see below), whose sum is σ = 10602136800. Its totient is φ = 3318658128.

The previous prime is 6851887379. The next prime is 6851887453. The reversal of 6851887402 is 2047881586.

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, 187152 + ... + 220747.

It is an arithmetic number, because the mean of its divisors is an integer number (662633550).

Almost surely, 2^6851887402 is an apocalyptic number.

6851887402 is a deficient number, since it is larger than the sum of its proper divisors (3750249398).

6851887402 is a wasteful number, since it uses less digits than its factorization.

6851887402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408165.

The product of its (nonzero) digits is 860160, while the sum is 49.

The square root of 6851887402 is about 82776.1282133925. The cubic root of 6851887402 is about 1899.3430232741.

The spelling of 6851887402 in words is "six billion, eight hundred fifty-one million, eight hundred eighty-seven thousand, four hundred two".