1051343553999 has 16 divisors (see below), whose sum is σ = 1434430432512. Its totient is φ = 684577080768.

The previous prime is 1051343553979. The next prime is 1051343554021. The reversal of 1051343553999 is 9993553431501.

It is not a de Polignac number, because 1051343553999 - 2¹² = 1051343549903 is a prime.

It is a super-2 number, since 2×1051343553999² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1051343553979) 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 15 ways as a sum of consecutive naturals, for example, 5858899 + ... + 6035675.

It is an arithmetic number, because the mean of its divisors is an integer number (89651902032).

Almost surely, 2^{1051343553999} is an apocalyptic number.

1051343553999 is a deficient number, since it is larger than the sum of its proper divisors (383086878513).

1051343553999 is a wasteful number, since it uses less digits than its factorization.

1051343553999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222926.

The product of its (nonzero) digits is 9841500, while the sum is 57.

The spelling of 1051343553999 in words is "one trillion, fifty-one billion, three hundred forty-three million, five hundred fifty-three thousand, nine hundred ninety-nine".