611081764 has 12 divisors (see below), whose sum is σ = 1080418444. Its totient is φ = 302390784.

The previous prime is 611081719. The next prime is 611081767. The reversal of 611081764 is 467180116.

It can be written as a sum of positive squares in 2 ways, for example, as 275825664 + 335256100 = 16608^2 + 18310^2 .

It is not an unprimeable number, because it can be changed into a prime (611081767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 787089 + ... + 787864.

Almost surely, 2^611081764 is an apocalyptic number.

It is an amenable number.

611081764 is a deficient number, since it is larger than the sum of its proper divisors (469336680).

611081764 is a wasteful number, since it uses less digits than its factorization.

611081764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1575054 (or 1575052 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 611081764 is about 24720.0680419776. The cubic root of 611081764 is about 848.5936439661.

The spelling of 611081764 in words is "six hundred eleven million, eighty-one thousand, seven hundred sixty-four".