2451489293905 has 4 divisors (see below), whose sum is σ = 2941787152692. Its totient is φ = 1961191435120.

The previous prime is 2451489293899. The next prime is 2451489293917. The reversal of 2451489293905 is 5093929841542.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1576009073664 + 875480220241 = 1255392^2 + 935671^2 .

It is not a de Polignac number, because 2451489293905 - 2⁷ = 2451489293777 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 245148929386 + ... + 245148929395.

It is an arithmetic number, because the mean of its divisors is an integer number (735446788173).

Almost surely, 2^{2451489293905} is an apocalyptic number.

It is an amenable number.

2451489293905 is a deficient number, since it is larger than the sum of its proper divisors (490297858787).

2451489293905 is an equidigital number, since it uses as much as digits as its factorization.

2451489293905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490297858786.

The product of its (nonzero) digits is 27993600, while the sum is 61.

The spelling of 2451489293905 in words is "two trillion, four hundred fifty-one billion, four hundred eighty-nine million, two hundred ninety-three thousand, nine hundred five".