2451272921543 has 8 divisors (see below), whose sum is σ = 2535837420000. Its totient is φ = 2366710946208.

The previous prime is 2451272921533. The next prime is 2451272921551. The reversal of 2451272921543 is 3451292721542.

It is a happy number.

2451272921543 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2451272921543 - 2⁶ = 2451272921479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2451272921533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1463705 + ... + 2654237.

It is an arithmetic number, because the mean of its divisors is an integer number (316979677500).

Almost surely, 2^{2451272921543} is an apocalyptic number.

2451272921543 is a deficient number, since it is larger than the sum of its proper divisors (84564498457).

2451272921543 is a wasteful number, since it uses less digits than its factorization.

2451272921543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1261561.

The product of its digits is 1209600, while the sum is 47.

The spelling of 2451272921543 in words is "two trillion, four hundred fifty-one billion, two hundred seventy-two million, nine hundred twenty-one thousand, five hundred forty-three".