2687206669 has 8 divisors (see below), whose sum is σ = 3071426688. Its totient is φ = 2303070000.

The previous prime is 2687206657. The next prime is 2687206693. The reversal of 2687206669 is 9666027862.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2687206669 - 2¹³ = 2687198477 is a prime.

It is a super-2 number, since 2×2687206669² = 14442159363836151122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2687206699) 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, 82299 + ... + 110215.

It is an arithmetic number, because the mean of its divisors is an integer number (383928336).

Almost surely, 2^2687206669 is an apocalyptic number.

It is an amenable number.

2687206669 is a deficient number, since it is larger than the sum of its proper divisors (384220019).

2687206669 is a wasteful number, since it uses less digits than its factorization.

2687206669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41675.

The product of its (nonzero) digits is 2612736, while the sum is 52.

The square root of 2687206669 is about 51838.2741707322. The cubic root of 2687206669 is about 1390.2738568120.

The spelling of 2687206669 in words is "two billion, six hundred eighty-seven million, two hundred six thousand, six hundred sixty-nine".