2451451043423 has 4 divisors (see below), whose sum is σ = 2451454174920. Its totient is φ = 2451447911928.

The previous prime is 2451451043417. The next prime is 2451451043443. The reversal of 2451451043423 is 3243401541542.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2451451043423 - 2⁴ = 2451451043407 is a prime.

It is a super-2 number, since 2×2451451043423² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2451451043443) 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, 766736 + ... + 2343242.

It is an arithmetic number, because the mean of its divisors is an integer number (612863543730).

Almost surely, 2^{2451451043423} is an apocalyptic number.

2451451043423 is a deficient number, since it is larger than the sum of its proper divisors (3131497).

2451451043423 is a wasteful number, since it uses less digits than its factorization.

2451451043423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3131496.

The product of its (nonzero) digits is 230400, while the sum is 38.

Adding to 2451451043423 its reverse (3243401541542), we get a palindrome (5694852584965).

The spelling of 2451451043423 in words is "two trillion, four hundred fifty-one billion, four hundred fifty-one million, forty-three thousand, four hundred twenty-three".