6687761201 has 4 divisors (see below), whose sum is σ = 7295739504. Its totient is φ = 6079782900.

The previous prime is 6687761153. The next prime is 6687761203. The reversal of 6687761201 is 1021677866.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6687761201 - 2¹⁸ = 6687499057 is a prime.

It is a super-2 number, since 2×6687761201² = 89452299763201924802, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6687761203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 303989135 + ... + 303989156.

It is an arithmetic number, because the mean of its divisors is an integer number (1823934876).

Almost surely, 2^6687761201 is an apocalyptic number.

It is an amenable number.

6687761201 is a deficient number, since it is larger than the sum of its proper divisors (607978303).

6687761201 is a wasteful number, since it uses less digits than its factorization.

6687761201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607978302.

The product of its (nonzero) digits is 169344, while the sum is 44.

The square root of 6687761201 is about 81778.7331829003. The cubic root of 6687761201 is about 1884.0550394087.

The spelling of 6687761201 in words is "six billion, six hundred eighty-seven million, seven hundred sixty-one thousand, two hundred one".