3111742749 has 16 divisors (see below), whose sum is σ = 4388694912. Its totient is φ = 1957114368.

The previous prime is 3111742723. The next prime is 3111742759. The reversal of 3111742749 is 9472471113.

It is not a de Polignac number, because 3111742749 - 2²³ = 3103354141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3111742759) 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 15 ways as a sum of consecutive naturals, for example, 303852 + ... + 313925.

It is an arithmetic number, because the mean of its divisors is an integer number (274293432).

Almost surely, 2^3111742749 is an apocalyptic number.

It is an amenable number.

3111742749 is a deficient number, since it is larger than the sum of its proper divisors (1276952163).

3111742749 is a wasteful number, since it uses less digits than its factorization.

3111742749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617876.

The product of its digits is 42336, while the sum is 39.

The square root of 3111742749 is about 55782.9969524765. The cubic root of 3111742749 is about 1459.9385019758.

The spelling of 3111742749 in words is "three billion, one hundred eleven million, seven hundred forty-two thousand, seven hundred forty-nine".