2664789361 has 12 divisors (see below), whose sum is σ = 2999978548. Its totient is φ = 2352851424.

The previous prime is 2664789319. The next prime is 2664789367. The reversal of 2664789361 is 1639874662.

It can be written as a sum of positive squares in 2 ways, for example, as 1262736225 + 1402053136 = 35535^2 + 37444^2 .

It is not a de Polignac number, because 2664789361 - 2¹¹ = 2664787313 is a prime.

It is a super-2 number, since 2×2664789361² = 14202204676997576642, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2664789299 and 2664789308.

It is not an unprimeable number, because it can be changed into a prime (2664789367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 186870 + ... + 200623.

Almost surely, 2^2664789361 is an apocalyptic number.

It is an amenable number.

2664789361 is a deficient number, since it is larger than the sum of its proper divisors (335189187).

2664789361 is a wasteful number, since it uses less digits than its factorization.

2664789361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387552 (or 387529 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 52.

The square root of 2664789361 is about 51621.5978152556. The cubic root of 2664789361 is about 1386.3970595466.

The spelling of 2664789361 in words is "two billion, six hundred sixty-four million, seven hundred eighty-nine thousand, three hundred sixty-one".