2661272674 has 8 divisors (see below), whose sum is σ = 3992163840. Its totient is φ = 1330551396.

The previous prime is 2661272671. The next prime is 2661272687. The reversal of 2661272674 is 4762721662.

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

It is a super-2 number, since 2×2661272674² = 14164744490758220552, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2661272674.

It is not an unprimeable number, because it can be changed into a prime (2661272671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9327 + ... + 73549.

It is an arithmetic number, because the mean of its divisors is an integer number (499020480).

Almost surely, 2^2661272674 is an apocalyptic number.

2661272674 is a deficient number, since it is larger than the sum of its proper divisors (1330891166).

2661272674 is a wasteful number, since it uses less digits than its factorization.

2661272674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84944.

The product of its digits is 338688, while the sum is 43.

The square root of 2661272674 is about 51587.5244027081. The cubic root of 2661272674 is about 1385.7869211641.

The spelling of 2661272674 in words is "two billion, six hundred sixty-one million, two hundred seventy-two thousand, six hundred seventy-four".