1373267438505 has 24 divisors (see below), whose sum is σ = 2483822847168. Its totient is φ = 700565417376.

The previous prime is 1373267438489. The next prime is 1373267438509. The reversal of 1373267438505 is 5058347623731.

1373267438505 is a `hidden beast` number, since 1 + 3 + 7 + 32 + 6 + 74 + 38 + 505 = 666.

It is not a de Polignac number, because 1373267438505 - 2⁴ = 1373267438489 is a prime.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1373267438509) 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, 663413187 + ... + 663415256.

It is an arithmetic number, because the mean of its divisors is an integer number (103492618632).

Almost surely, 2^{1373267438505} is an apocalyptic number.

1373267438505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1373267438505 is a deficient number, since it is larger than the sum of its proper divisors (1110555408663).

1373267438505 is a wasteful number, since it uses less digits than its factorization.

1373267438505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1326828477 (or 1326828474 counting only the distinct ones).

The product of its (nonzero) digits is 12700800, while the sum is 54.

The spelling of 1373267438505 in words is "one trillion, three hundred seventy-three billion, two hundred sixty-seven million, four hundred thirty-eight thousand, five hundred five".