1920343436787 has 16 divisors (see below), whose sum is σ = 2644177858560. Its totient is φ = 1238404128000.

The previous prime is 1920343436773. The next prime is 1920343436807. The reversal of 1920343436787 is 7876343430291.

It is not a de Polignac number, because 1920343436787 - 2¹⁰ = 1920343435763 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1920343436747) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4172862 + ... + 4610147.

It is an arithmetic number, because the mean of its divisors is an integer number (165261116160).

Almost surely, 2^{1920343436787} is an apocalyptic number.

1920343436787 is a deficient number, since it is larger than the sum of its proper divisors (723834421773).

1920343436787 is a wasteful number, since it uses less digits than its factorization.

1920343436787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8785394.

The product of its (nonzero) digits is 18289152, while the sum is 57.

The spelling of 1920343436787 in words is "one trillion, nine hundred twenty billion, three hundred forty-three million, four hundred thirty-six thousand, seven hundred eighty-seven".