1373003467781 has 16 divisors (see below), whose sum is σ = 1584957984768. Its totient is φ = 1177100324400.

The previous prime is 1373003467751. The next prime is 1373003467783. The reversal of 1373003467781 is 1877643003731.

It is a de Polignac number, because none of the positive numbers 2^k-1373003467781 is a prime.

It is a super-2 number, since 2×1373003467781² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1373003467783) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38199581 + ... + 38235506.

It is an arithmetic number, because the mean of its divisors is an integer number (99059874048).

Almost surely, 2^{1373003467781} is an apocalyptic number.

1373003467781 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1373003467781 is a deficient number, since it is larger than the sum of its proper divisors (211954516987).

1373003467781 is a wasteful number, since it uses less digits than its factorization.

1373003467781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76435192.

The product of its (nonzero) digits is 1778112, while the sum is 50.

The spelling of 1373003467781 in words is "one trillion, three hundred seventy-three billion, three million, four hundred sixty-seven thousand, seven hundred eighty-one".