3128641551 has 32 divisors (see below), whose sum is σ = 5468057600. Its totient is φ = 1730121120.

The previous prime is 3128641547. The next prime is 3128641553. The reversal of 3128641551 is 1551468213.

3128641551 is a `hidden beast` number, since 3 + 1 + 2 + 8 + 641 + 5 + 5 + 1 = 666.

It is not a de Polignac number, because 3128641551 - 2² = 3128641547 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 (3128641553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 261136 + ... + 272853.

It is an arithmetic number, because the mean of its divisors is an integer number (170876800).

Almost surely, 2^3128641551 is an apocalyptic number.

3128641551 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

3128641551 is a deficient number, since it is larger than the sum of its proper divisors (2339416049).

3128641551 is a wasteful number, since it uses less digits than its factorization.

3128641551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534036 (or 534030 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The square root of 3128641551 is about 55934.2609766143. The cubic root of 3128641551 is about 1462.5765398470.

The spelling of 3128641551 in words is "three billion, one hundred twenty-eight million, six hundred forty-one thousand, five hundred fifty-one".