2670688205 has 4 divisors (see below), whose sum is σ = 3204825852. Its totient is φ = 2136550560.

The previous prime is 2670688193. The next prime is 2670688249. The reversal of 2670688205 is 5028860762.

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

It can be written as a sum of positive squares in 2 ways, for example, as 732135364 + 1938552841 = 27058^2 + 44029^2 .

It is not a de Polignac number, because 2670688205 - 2²² = 2666493901 is a prime.

It is a super-2 number, since 2×2670688205² = 14265150976652244050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 267068816 + ... + 267068825.

It is an arithmetic number, because the mean of its divisors is an integer number (801206463).

Almost surely, 2^2670688205 is an apocalyptic number.

It is an amenable number.

2670688205 is a deficient number, since it is larger than the sum of its proper divisors (534137647).

2670688205 is an equidigital number, since it uses as much as digits as its factorization.

2670688205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534137646.

The product of its (nonzero) digits is 322560, while the sum is 44.

The square root of 2670688205 is about 51678.7016574527. The cubic root of 2670688205 is about 1387.4192933063.

The spelling of 2670688205 in words is "two billion, six hundred seventy million, six hundred eighty-eight thousand, two hundred five".