611128943 has 16 divisors (see below), whose sum is σ = 633368736. Its totient is φ = 589317120.

The previous prime is 611128933. The next prime is 611128957. The reversal of 611128943 is 349821116.

It is a cyclic number.

It is not a de Polignac number, because 611128943 - 2¹⁴ = 611112559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (611128933) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1813271 + ... + 1813607.

It is an arithmetic number, because the mean of its divisors is an integer number (39585546).

Almost surely, 2^611128943 is an apocalyptic number.

611128943 is a deficient number, since it is larger than the sum of its proper divisors (22239793).

611128943 is a wasteful number, since it uses less digits than its factorization.

611128943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 794.

The product of its digits is 10368, while the sum is 35.

The square root of 611128943 is about 24721.0222887323. The cubic root of 611128943 is about 848.6154821616.

The spelling of 611128943 in words is "six hundred eleven million, one hundred twenty-eight thousand, nine hundred forty-three".