2730557451 has 4 divisors (see below), whose sum is σ = 3640743272. Its totient is φ = 1820371632.

The previous prime is 2730557443. The next prime is 2730557497. The reversal of 2730557451 is 1547550372.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2730557451 - 2³ = 2730557443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2730557251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 455092906 + ... + 455092911.

It is an arithmetic number, because the mean of its divisors is an integer number (910185818).

Almost surely, 2^2730557451 is an apocalyptic number.

2730557451 is a deficient number, since it is larger than the sum of its proper divisors (910185821).

2730557451 is an equidigital number, since it uses as much as digits as its factorization.

2730557451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 910185820.

The product of its (nonzero) digits is 147000, while the sum is 39.

The square root of 2730557451 is about 52254.7361585531. The cubic root of 2730557451 is about 1397.7101088232.

The spelling of 2730557451 in words is "two billion, seven hundred thirty million, five hundred fifty-seven thousand, four hundred fifty-one".