1540321444351 has 2 divisors, whose sum is σ = 1540321444352. Its totient is φ = 1540321444350.

The previous prime is 1540321444339. The next prime is 1540321444381. The reversal of 1540321444351 is 1534441230451.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1540321444351 - 2¹⁵ = 1540321411583 is a prime.

It is a super-2 number, since 2×1540321444351² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1540321444351.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1540321444381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 770160722175 + 770160722176.

It is an arithmetic number, because the mean of its divisors is an integer number (770160722176).

Almost surely, 2^{1540321444351} is an apocalyptic number.

1540321444351 is a deficient number, since it is larger than the sum of its proper divisors (1).

1540321444351 is an equidigital number, since it uses as much as digits as its factorization.

1540321444351 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 115200, while the sum is 37.

The spelling of 1540321444351 in words is "one trillion, five hundred forty billion, three hundred twenty-one million, four hundred forty-four thousand, three hundred fifty-one".