9445742991361 has 16 divisors (see below), whose sum is σ = 9559721160000. Its totient is φ = 9332418700800.

The previous prime is 9445742991343. The next prime is 9445742991367. The reversal of 9445742991361 is 1631992475449.

It is a cyclic number.

It is not a de Polignac number, because 9445742991361 - 2²⁵ = 9445709436929 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9445742991293 and 9445742991302.

It is not an unprimeable number, because it can be changed into a prime (9445742991367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134425765 + ... + 134496013.

It is an arithmetic number, because the mean of its divisors is an integer number (597482572500).

Almost surely, 2^{9445742991361} is an apocalyptic number.

It is an amenable number.

9445742991361 is a deficient number, since it is larger than the sum of its proper divisors (113978168639).

9445742991361 is a wasteful number, since it uses less digits than its factorization.

9445742991361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74880.

The product of its digits is 58786560, while the sum is 64.

The spelling of 9445742991361 in words is "nine trillion, four hundred forty-five billion, seven hundred forty-two million, nine hundred ninety-one thousand, three hundred sixty-one".