1373648323653 has 32 divisors (see below), whose sum is σ = 2090157496320. Its totient is φ = 890963115840.

The previous prime is 1373648323651. The next prime is 1373648323669. The reversal of 1373648323653 is 3563238463731.

1373648323653 is a `hidden beast` number, since 13 + 73 + 6 + 483 + 2 + 36 + 53 = 666.

It is not a de Polignac number, because 1373648323653 - 2¹ = 1373648323651 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1373648323653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1373648323651) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24728476 + ... + 24783962.

It is an arithmetic number, because the mean of its divisors is an integer number (65317421760).

Almost surely, 2^{1373648323653} is an apocalyptic number.

It is an amenable number.

1373648323653 is a deficient number, since it is larger than the sum of its proper divisors (716509172667).

1373648323653 is a wasteful number, since it uses less digits than its factorization.

1373648323653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80314 (or 80308 counting only the distinct ones).

The product of its digits is 19595520, while the sum is 54.

The spelling of 1373648323653 in words is "one trillion, three hundred seventy-three billion, six hundred forty-eight million, three hundred twenty-three thousand, six hundred fifty-three".