9421781043 has 6 divisors (see below), whose sum is σ = 12562598892. Its totient is φ = 6281075280.

The previous prime is 9421781027. The next prime is 9421781053. The reversal of 9421781043 is 3401871249.

It is not a de Polignac number, because 9421781043 - 2⁴ = 9421781027 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9421780992 and 9421781010.

It is not an unprimeable number, because it can be changed into a prime (9421781003) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 140103 + ... + 196143.

It is an arithmetic number, because the mean of its divisors is an integer number (2093766482).

Almost surely, 2^9421781043 is an apocalyptic number.

9421781043 is a deficient number, since it is larger than the sum of its proper divisors (3140817849).

9421781043 is an frugal number, since it uses more digits than its factorization.

9421781043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112085 (or 56044 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 9421781043 is about 97065.8593069675. The cubic root of 9421781043 is about 2112.0831043060.

The spelling of 9421781043 in words is "nine billion, four hundred twenty-one million, seven hundred eighty-one thousand, forty-three".