2612861409 has 8 divisors (see below), whose sum is σ = 3484053280. Its totient is φ = 1741788576.

The previous prime is 2612861357. The next prime is 2612861429. The reversal of 2612861409 is 9041682162.

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

It is not a de Polignac number, because 2612861409 - 2⁷ = 2612861281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2612861429) 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, 61029 + ... + 94605.

It is an arithmetic number, because the mean of its divisors is an integer number (435506660).

Almost surely, 2^2612861409 is an apocalyptic number.

It is an amenable number.

2612861409 is a deficient number, since it is larger than the sum of its proper divisors (871191871).

2612861409 is a wasteful number, since it uses less digits than its factorization.

2612861409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59519.

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 2612861409 is about 51116.1560467921. The cubic root of 2612861409 is about 1377.3324878017.

The spelling of 2612861409 in words is "two billion, six hundred twelve million, eight hundred sixty-one thousand, four hundred nine".