9542494067491 has 16 divisors (see below), whose sum is σ = 11908810863360. Its totient is φ = 7428412536480.

The previous prime is 9542494067489. The next prime is 9542494067521. The reversal of 9542494067491 is 1947604942459.

It is a cyclic number.

It is not a de Polignac number, because 9542494067491 - 2¹ = 9542494067489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9542494067411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60730416 + ... + 60887341.

It is an arithmetic number, because the mean of its divisors is an integer number (744300678960).

Almost surely, 2^{9542494067491} is an apocalyptic number.

9542494067491 is a deficient number, since it is larger than the sum of its proper divisors (2366316795869).

9542494067491 is a wasteful number, since it uses less digits than its factorization.

9542494067491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121618794.

The product of its (nonzero) digits is 78382080, while the sum is 64.

The spelling of 9542494067491 in words is "nine trillion, five hundred forty-two billion, four hundred ninety-four million, sixty-seven thousand, four hundred ninety-one".