2928115457 has 4 divisors (see below), whose sum is σ = 2928561840. Its totient is φ = 2927669076.

The previous prime is 2928115453. The next prime is 2928115499. The reversal of 2928115457 is 7545118292.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2928115457 - 2² = 2928115453 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2928115451) 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 3 ways as a sum of consecutive naturals, for example, 213203 + ... + 226520.

It is an arithmetic number, because the mean of its divisors is an integer number (732140460).

Almost surely, 2^2928115457 is an apocalyptic number.

It is an amenable number.

2928115457 is a deficient number, since it is larger than the sum of its proper divisors (446383).

2928115457 is an equidigital number, since it uses as much as digits as its factorization.

2928115457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446382.

The product of its digits is 201600, while the sum is 44.

The square root of 2928115457 is about 54112.0638767364. The cubic root of 2928115457 is about 1430.6368228212.

The spelling of 2928115457 in words is "two billion, nine hundred twenty-eight million, one hundred fifteen thousand, four hundred fifty-seven".