1385175657644 has 6 divisors (see below), whose sum is σ = 2424057400884. Its totient is φ = 692587828820.

The previous prime is 1385175657623. The next prime is 1385175657647. The reversal of 1385175657644 is 4467565715831.

It is not an unprimeable number, because it can be changed into a prime (1385175657647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173146957202 + ... + 173146957209.

It is an arithmetic number, because the mean of its divisors is an integer number (404009566814).

Almost surely, 2^{1385175657644} is an apocalyptic number.

It is an amenable number.

1385175657644 is a deficient number, since it is larger than the sum of its proper divisors (1038881743240).

1385175657644 is a wasteful number, since it uses less digits than its factorization.

1385175657644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346293914415 (or 346293914413 counting only the distinct ones).

The product of its digits is 84672000, while the sum is 62.

The spelling of 1385175657644 in words is "one trillion, three hundred eighty-five billion, one hundred seventy-five million, six hundred fifty-seven thousand, six hundred forty-four".