1373003642385 has 64 divisors (see below), whose sum is σ = 2511860060160. Its totient is φ = 711217091520.

The previous prime is 1373003642383. The next prime is 1373003642509. The reversal of 1373003642385 is 5832463003731.

It is not a de Polignac number, because 1373003642385 - 2¹ = 1373003642383 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 1373003642385.

It is not an unprimeable number, because it can be changed into a prime (1373003642383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5274 + ... + 1657116.

It is an arithmetic number, because the mean of its divisors is an integer number (39247813440).

Almost surely, 2^{1373003642385} is an apocalyptic number.

1373003642385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1373003642385 is a deficient number, since it is larger than the sum of its proper divisors (1138856417775).

1373003642385 is a wasteful number, since it uses less digits than its factorization.

1373003642385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1652035 (or 1652029 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 45.

The spelling of 1373003642385 in words is "one trillion, three hundred seventy-three billion, three million, six hundred forty-two thousand, three hundred eighty-five".