1426430644657 has 8 divisors (see below), whose sum is σ = 1445349169440. Its totient is φ = 1407633782880.

The previous prime is 1426430644651. The next prime is 1426430644673. The reversal of 1426430644657 is 7564460346241.

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 1426430644657 - 2¹⁹ = 1426430120369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1426430644651) 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 7 ways as a sum of consecutive naturals, for example, 30392148 + ... + 30439045.

It is an arithmetic number, because the mean of its divisors is an integer number (180668646180).

Almost surely, 2^{1426430644657} is an apocalyptic number.

It is an amenable number.

1426430644657 is a deficient number, since it is larger than the sum of its proper divisors (18918524783).

1426430644657 is a wasteful number, since it uses less digits than its factorization.

1426430644657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60831503.

The product of its (nonzero) digits is 11612160, while the sum is 52.

The spelling of 1426430644657 in words is "one trillion, four hundred twenty-six billion, four hundred thirty million, six hundred forty-four thousand, six hundred fifty-seven".