1401317265761 has 8 divisors (see below), whose sum is σ = 1609634917440. Its totient is φ = 1195031981808.

The previous prime is 1401317265739. The next prime is 1401317265811. The reversal of 1401317265761 is 1675627131041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1401317265761 - 2¹⁸ = 1401317003617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1401317265661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 508090451 + ... + 508093208.

It is an arithmetic number, because the mean of its divisors is an integer number (201204364680).

Almost surely, 2^{1401317265761} is an apocalyptic number.

It is an amenable number.

1401317265761 is a deficient number, since it is larger than the sum of its proper divisors (208317651679).

1401317265761 is a wasteful number, since it uses less digits than its factorization.

1401317265761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1016183863.

The product of its (nonzero) digits is 211680, while the sum is 44.

The spelling of 1401317265761 in words is "one trillion, four hundred one billion, three hundred seventeen million, two hundred sixty-five thousand, seven hundred sixty-one".