3128347742 has 16 divisors (see below), whose sum is σ = 5099851680. Its totient is φ = 1430605152.

The previous prime is 3128347723. The next prime is 3128347753. The reversal of 3128347742 is 2477438213.

It is a self number, because there is not a number n which added to its sum of digits gives 3128347742.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 549098 + ... + 554765.

It is an arithmetic number, because the mean of its divisors is an integer number (318740730).

Almost surely, 2^3128347742 is an apocalyptic number.

3128347742 is a deficient number, since it is larger than the sum of its proper divisors (1971503938).

3128347742 is a wasteful number, since it uses less digits than its factorization.

3128347742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1103987.

The product of its digits is 225792, while the sum is 41.

The square root of 3128347742 is about 55931.6345371740. The cubic root of 3128347742 is about 1462.5307551620.

The spelling of 3128347742 in words is "three billion, one hundred twenty-eight million, three hundred forty-seven thousand, seven hundred forty-two".