6851495361987 has 16 divisors (see below), whose sum is σ = 10224453749280. Its totient is φ = 4534322962176.

The previous prime is 6851495361941. The next prime is 6851495362073. The reversal of 6851495361987 is 7891635941586.

6851495361987 is a `hidden beast` number, since 6 + 8 + 5 + 1 + 4 + 9 + 536 + 1 + 9 + 87 = 666.

It is not a de Polignac number, because 6851495361987 - 2⁷ = 6851495361859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6851495361937) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 926124358 + ... + 926131755.

It is an arithmetic number, because the mean of its divisors is an integer number (639028359330).

Almost surely, 2^{6851495361987} is an apocalyptic number.

6851495361987 is a deficient number, since it is larger than the sum of its proper divisors (3372958387293).

6851495361987 is a wasteful number, since it uses less digits than its factorization.

6851495361987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1852256259 (or 1852256253 counting only the distinct ones).

The product of its digits is 391910400, while the sum is 72.

The spelling of 6851495361987 in words is "six trillion, eight hundred fifty-one billion, four hundred ninety-five million, three hundred sixty-one thousand, nine hundred eighty-seven".