2451387427 has 4 divisors (see below), whose sum is σ = 2463831216. Its totient is φ = 2438943640.

The previous prime is 2451387383. The next prime is 2451387439. The reversal of 2451387427 is 7247831542.

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

It is a cyclic number.

It is not a de Polignac number, because 2451387427 - 2¹⁹ = 2450863139 is a prime.

It is a super-4 number, since 4×2451387427⁴ (a number of 39 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2451387457) 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 3 ways as a sum of consecutive naturals, for example, 6221599 + ... + 6221992.

It is an arithmetic number, because the mean of its divisors is an integer number (615957804).

Almost surely, 2^2451387427 is an apocalyptic number.

2451387427 is a deficient number, since it is larger than the sum of its proper divisors (12443789).

2451387427 is a wasteful number, since it uses less digits than its factorization.

2451387427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12443788.

The product of its digits is 376320, while the sum is 43.

The square root of 2451387427 is about 49511.4878285838. The cubic root of 2451387427 is about 1348.3541766957.

The spelling of 2451387427 in words is "two billion, four hundred fifty-one million, three hundred eighty-seven thousand, four hundred twenty-seven".