1794400037653 has 2 divisors, whose sum is σ = 1794400037654. Its totient is φ = 1794400037652.

The previous prime is 1794400037629. The next prime is 1794400037711. The reversal of 1794400037653 is 3567300044971.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 934242099844 + 860157937809 = 966562^2 + 927447^2 .

It is a cyclic number.

It is not a de Polignac number, because 1794400037653 - 2⁹ = 1794400037141 is a prime.

It is a super-3 number, since 3×1794400037653³ (a number of 38 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1794400037597 and 1794400037606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1794407037653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 897200018826 + 897200018827.

It is an arithmetic number, because the mean of its divisors is an integer number (897200018827).

Almost surely, 2^{1794400037653} is an apocalyptic number.

It is an amenable number.

1794400037653 is a deficient number, since it is larger than the sum of its proper divisors (1).

1794400037653 is an equidigital number, since it uses as much as digits as its factorization.

1794400037653 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1905120, while the sum is 49.

The spelling of 1794400037653 in words is "one trillion, seven hundred ninety-four billion, four hundred million, thirty-seven thousand, six hundred fifty-three".