1545242660647 has 24 divisors (see below), whose sum is σ = 1874034611856. Its totient is φ = 1269282163968.

The previous prime is 1545242660623. The next prime is 1545242660699. The reversal of 1545242660647 is 7460662425451.

It is not a de Polignac number, because 1545242660647 - 2¹¹ = 1545242658599 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1545242660594 and 1545242660603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1545242660147) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6807058 + ... + 7030399.

It is an arithmetic number, because the mean of its divisors is an integer number (78084775494).

Almost surely, 2^{1545242660647} is an apocalyptic number.

1545242660647 is a deficient number, since it is larger than the sum of its proper divisors (328791951209).

1545242660647 is a wasteful number, since it uses less digits than its factorization.

1545242660647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13837567 (or 13837560 counting only the distinct ones).

The product of its (nonzero) digits is 9676800, while the sum is 52.

The spelling of 1545242660647 in words is "one trillion, five hundred forty-five billion, two hundred forty-two million, six hundred sixty thousand, six hundred forty-seven".