2661087395 has 8 divisors (see below), whose sum is σ = 3193778160. Its totient is φ = 2128554400.

The previous prime is 2661087391. The next prime is 2661087439. The reversal of 2661087395 is 5937801662.

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

It is not a de Polignac number, because 2661087395 - 2² = 2661087391 is a prime.

It is a super-2 number, since 2×2661087395² = 14162772247655772050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2661087391) 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, 1541 + ... + 72969.

It is an arithmetic number, because the mean of its divisors is an integer number (399222270).

Almost surely, 2^2661087395 is an apocalyptic number.

2661087395 is a deficient number, since it is larger than the sum of its proper divisors (532690765).

2661087395 is an equidigital number, since it uses as much as digits as its factorization.

2661087395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78885.

The product of its (nonzero) digits is 544320, while the sum is 47.

The square root of 2661087395 is about 51585.7285981307. The cubic root of 2661087395 is about 1385.7547607149.

The spelling of 2661087395 in words is "two billion, six hundred sixty-one million, eighty-seven thousand, three hundred ninety-five".