1791401401013 has 4 divisors (see below), whose sum is σ = 2047315886880. Its totient is φ = 1535486915148.

The previous prime is 1791401401007. The next prime is 1791401401021. The reversal of 1791401401013 is 3101041041971.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1791401401013 - 2¹⁰ = 1791401399989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1791401401003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127957242923 + ... + 127957242936.

It is an arithmetic number, because the mean of its divisors is an integer number (511828971720).

Almost surely, 2^{1791401401013} is an apocalyptic number.

It is an amenable number.

1791401401013 is a deficient number, since it is larger than the sum of its proper divisors (255914485867).

1791401401013 is an equidigital number, since it uses as much as digits as its factorization.

1791401401013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255914485866.

The product of its (nonzero) digits is 3024, while the sum is 32.

Adding to 1791401401013 its reverse (3101041041971), we get a palindrome (4892442442984).

The spelling of 1791401401013 in words is "one trillion, seven hundred ninety-one billion, four hundred one million, four hundred one thousand, thirteen".