143907446866 has 8 divisors (see below), whose sum is σ = 223304659020. Its totient is φ = 69472560528.

The previous prime is 143907446803. The next prime is 143907446933. The reversal of 143907446866 is 668644709341.

It can be written as a sum of positive squares in 2 ways, for example, as 130233652641 + 13673794225 = 360879^2 + 116935^2 .

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

It is a super-2 number, since 2×143907446866² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (58), and also a Moran number because the ratio is a prime number: 2481162877 = 143907446866 / (1 + 4 + 3 + 9 + 0 + 7 + 4 + 4 + 6 + 8 + 6 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 143907446866.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1240581381 + ... + 1240581496.

Almost surely, 2^143907446866 is an apocalyptic number.

143907446866 is a deficient number, since it is larger than the sum of its proper divisors (79397212154).

143907446866 is a wasteful number, since it uses less digits than its factorization.

143907446866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2481162908.

The product of its (nonzero) digits is 20901888, while the sum is 58.

The spelling of 143907446866 in words is "one hundred forty-three billion, nine hundred seven million, four hundred forty-six thousand, eight hundred sixty-six".