1543422243451 has 24 divisors (see below), whose sum is σ = 1741373326224. Its totient is φ = 1366444200000.

The previous prime is 1543422243443. The next prime is 1543422243463.

1543422243451 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 1543422243451 - 2³ = 1543422243443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1543422243421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 289705 + ... + 1780666.

It is an arithmetic number, because the mean of its divisors is an integer number (72557221926).

Almost surely, 2^{1543422243451} is an apocalyptic number.

1543422243451 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1543422243451 is a deficient number, since it is larger than the sum of its proper divisors (197951082773).

1543422243451 is a wasteful number, since it uses less digits than its factorization.

1543422243451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2070555 (or 2070544 counting only the distinct ones).

The product of its digits is 460800, while the sum is 40.

The spelling of 1543422243451 in words is "one trillion, five hundred forty-three billion, four hundred twenty-two million, two hundred forty-three thousand, four hundred fifty-one".