2451487009 has 2 divisors, whose sum is σ = 2451487010. Its totient is φ = 2451487008.

The previous prime is 2451487001. The next prime is 2451487043. The reversal of 2451487009 is 9007841542.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2327097600 + 124389409 = 48240^2 + 11153^2 .

It is a cyclic number.

It is not a de Polignac number, because 2451487009 - 2³ = 2451487001 is a prime.

It is a super-3 number, since 3×2451487009³ (a number of 29 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (2451487001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1225743504 + 1225743505.

It is an arithmetic number, because the mean of its divisors is an integer number (1225743505).

Almost surely, 2^2451487009 is an apocalyptic number.

It is an amenable number.

2451487009 is a deficient number, since it is larger than the sum of its proper divisors (1).

2451487009 is an equidigital number, since it uses as much as digits as its factorization.

2451487009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 2451487009 is about 49512.4934637713. The cubic root of 2451487009 is about 1348.3724343820.

The spelling of 2451487009 in words is "two billion, four hundred fifty-one million, four hundred eighty-seven thousand, nine".