1401909967573 has 2 divisors, whose sum is σ = 1401909967574. Its totient is φ = 1401909967572.

The previous prime is 1401909967561. The next prime is 1401909967631. The reversal of 1401909967573 is 3757699091041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1177535330449 + 224374637124 = 1085143^2 + 473682^2 .

It is a cyclic number.

It is not a de Polignac number, because 1401909967573 - 2⁵ = 1401909967541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1401909967273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700954983786 + 700954983787.

It is an arithmetic number, because the mean of its divisors is an integer number (700954983787).

Almost surely, 2^{1401909967573} is an apocalyptic number.

It is an amenable number.

1401909967573 is a deficient number, since it is larger than the sum of its proper divisors (1).

1401909967573 is an equidigital number, since it uses as much as digits as its factorization.

1401909967573 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12859560, while the sum is 61.

The spelling of 1401909967573 in words is "one trillion, four hundred one billion, nine hundred nine million, nine hundred sixty-seven thousand, five hundred seventy-three".