1425660780111 has 4 divisors (see below), whose sum is σ = 1900881040152. Its totient is φ = 950440520072.

The previous prime is 1425660780101. The next prime is 1425660780149. The reversal of 1425660780111 is 1110870665241.

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 1425660780111 - 2⁵ = 1425660780079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1425660780101) 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, 237610130016 + ... + 237610130021.

It is an arithmetic number, because the mean of its divisors is an integer number (475220260038).

Almost surely, 2^{1425660780111} is an apocalyptic number.

1425660780111 is a deficient number, since it is larger than the sum of its proper divisors (475220260041).

1425660780111 is an equidigital number, since it uses as much as digits as its factorization.

1425660780111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475220260040.

The product of its (nonzero) digits is 80640, while the sum is 42.

The spelling of 1425660780111 in words is "one trillion, four hundred twenty-five billion, six hundred sixty million, seven hundred eighty thousand, one hundred eleven".