1420436446787 has 4 divisors (see below), whose sum is σ = 1426693876296. Its totient is φ = 1414179017280.

The previous prime is 1420436446757. The next prime is 1420436446813. The reversal of 1420436446787 is 7876446340241.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1420436446787 - 2¹⁰ = 1420436445763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1420436446757) 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 3 ways as a sum of consecutive naturals, for example, 3128714414 + ... + 3128714867.

It is an arithmetic number, because the mean of its divisors is an integer number (356673469074).

Almost surely, 2^{1420436446787} is an apocalyptic number.

1420436446787 is a deficient number, since it is larger than the sum of its proper divisors (6257429509).

1420436446787 is an equidigital number, since it uses as much as digits as its factorization.

1420436446787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6257429508.

The product of its (nonzero) digits is 21676032, while the sum is 56.

The spelling of 1420436446787 in words is "one trillion, four hundred twenty billion, four hundred thirty-six million, four hundred forty-six thousand, seven hundred eighty-seven".