1801678901741 has 2 divisors, whose sum is σ = 1801678901742. Its totient is φ = 1801678901740.

The previous prime is 1801678901731. The next prime is 1801678901861. The reversal of 1801678901741 is 1471098761081.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1774346546116 + 27332355625 = 1332046^2 + 165325^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1801678901741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1801678901731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 900839450870 + 900839450871.

It is an arithmetic number, because the mean of its divisors is an integer number (900839450871).

Almost surely, 2^{1801678901741} is an apocalyptic number.

It is an amenable number.

1801678901741 is a deficient number, since it is larger than the sum of its proper divisors (1).

1801678901741 is an equidigital number, since it uses as much as digits as its factorization.

1801678901741 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 677376, while the sum is 53.

The spelling of 1801678901741 in words is "one trillion, eight hundred one billion, six hundred seventy-eight million, nine hundred one thousand, seven hundred forty-one".