1373003673840 has 360 divisors, whose sum is σ = 4794544647360. Its totient is φ = 365642325504.

The previous prime is 1373003673817. The next prime is 1373003673887. The reversal of 1373003673840 is 483763003731.

It is a tau number, because it is divible by the number of its divisors (360).

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

It is a congruent number.

It is an unprimeable number.

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 71 ways as a sum of consecutive naturals, for example, 561095497 + ... + 561097943.

It is an arithmetic number, because the mean of its divisors is an integer number (13318179576).

Almost surely, 2^{1373003673840} is an apocalyptic number.

1373003673840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1373003673840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2397272323680).

1373003673840 is an abundant number, since it is smaller than the sum of its proper divisors (3421540973520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1373003673840 is an equidigital number, since it uses as much as digits as its factorization.

1373003673840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3553 (or 3526 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 45.

The spelling of 1373003673840 in words is "one trillion, three hundred seventy-three billion, three million, six hundred seventy-three thousand, eight hundred forty".