40002146543 has 2 divisors, whose sum is σ = 40002146544. Its totient is φ = 40002146542.

The previous prime is 40002146539. The next prime is 40002146573. The reversal of 40002146543 is 34564120004.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40002146543 - 2² = 40002146539 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40002146573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20001073271 + 20001073272.

It is an arithmetic number, because the mean of its divisors is an integer number (20001073272).

Almost surely, 2^40002146543 is an apocalyptic number.

40002146543 is a deficient number, since it is larger than the sum of its proper divisors (1).

40002146543 is an equidigital number, since it uses as much as digits as its factorization.

40002146543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 40002146543 its reverse (34564120004), we get a palindrome (74566266547).

The spelling of 40002146543 in words is "forty billion, two million, one hundred forty-six thousand, five hundred forty-three".