2611276261 has 8 divisors (see below), whose sum is σ = 2946895200. Its totient is φ = 2292029040.

The previous prime is 2611276259. The next prime is 2611276277. The reversal of 2611276261 is 1626721162.

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

It is a cyclic number.

It is not a de Polignac number, because 2611276261 - 2¹ = 2611276259 is a prime.

It is a super-2 number, since 2×2611276261² = 13637527422524280242, 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 (2611276201) 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, 4092591 + ... + 4093228.

It is an arithmetic number, because the mean of its divisors is an integer number (368361900).

Almost surely, 2^2611276261 is an apocalyptic number.

It is an amenable number.

2611276261 is a deficient number, since it is larger than the sum of its proper divisors (335618939).

2611276261 is a wasteful number, since it uses less digits than its factorization.

2611276261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8185859.

The product of its digits is 12096, while the sum is 34.

The square root of 2611276261 is about 51100.6483422667. The cubic root of 2611276261 is about 1377.0539020987.

It can be divided in two parts, 2611 and 276261, that added together give a palindrome (278872).

The spelling of 2611276261 in words is "two billion, six hundred eleven million, two hundred seventy-six thousand, two hundred sixty-one".