1287783673043 has 8 divisors (see below), whose sum is σ = 1472051278080. Its totient is φ = 1103590695240.

The previous prime is 1287783673019. The next prime is 1287783673081. The reversal of 1287783673043 is 3403763877821.

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

It is a cyclic number.

It is not a de Polignac number, because 1287783673043 - 2¹⁴ = 1287783656659 is a prime.

It is a super-2 number, since 2×1287783673043² (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 (1287789673043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18619823 + ... + 18688856.

It is an arithmetic number, because the mean of its divisors is an integer number (184006409760).

Almost surely, 2^{1287783673043} is an apocalyptic number.

1287783673043 is a deficient number, since it is larger than the sum of its proper divisors (184267605037).

1287783673043 is an equidigital number, since it uses as much as digits as its factorization.

1287783673043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37313617.

The product of its (nonzero) digits is 28449792, while the sum is 59.

The spelling of 1287783673043 in words is "one trillion, two hundred eighty-seven billion, seven hundred eighty-three million, six hundred seventy-three thousand, forty-three".