1243006446377 has 16 divisors (see below), whose sum is σ = 1282246099200. Its totient is φ = 1204066632960.

The previous prime is 1243006446293. The next prime is 1243006446379. The reversal of 1243006446377 is 7736446003421.

It is a cyclic number.

It is not a de Polignac number, because 1243006446377 - 2³² = 1238711479081 is a prime.

It is a super-2 number, since 2×1243006446377² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1243006446379) 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 in 15 ways as a sum of consecutive naturals, for example, 36890624 + ... + 36924302.

It is an arithmetic number, because the mean of its divisors is an integer number (80140381200).

Almost surely, 2^{1243006446377} is an apocalyptic number.

It is an amenable number.

1243006446377 is a deficient number, since it is larger than the sum of its proper divisors (39239652823).

1243006446377 is a wasteful number, since it uses less digits than its factorization.

1243006446377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38096.

The product of its (nonzero) digits is 2032128, while the sum is 47.

The spelling of 1243006446377 in words is "one trillion, two hundred forty-three billion, six million, four hundred forty-six thousand, three hundred seventy-seven".