2928165261 has 16 divisors (see below), whose sum is σ = 4463001600. Its totient is φ = 1672849008.

The previous prime is 2928165241. The next prime is 2928165301. The reversal of 2928165261 is 1625618292.

It is not a de Polignac number, because 2928165261 - 2⁶ = 2928165197 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2928165241) 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 15 ways as a sum of consecutive naturals, for example, 93880 + ... + 121118.

It is an arithmetic number, because the mean of its divisors is an integer number (278937600).

Almost surely, 2^2928165261 is an apocalyptic number.

2928165261 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2928165261 is a deficient number, since it is larger than the sum of its proper divisors (1534836339).

2928165261 is a wasteful number, since it uses less digits than its factorization.

2928165261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32368.

The product of its digits is 103680, while the sum is 42.

The square root of 2928165261 is about 54112.5240679087. The cubic root of 2928165261 is about 1430.6449339576.

The spelling of 2928165261 in words is "two billion, nine hundred twenty-eight million, one hundred sixty-five thousand, two hundred sixty-one".