9427848001381 has 4 divisors (see below), whose sum is σ = 9427857401452. Its totient is φ = 9427838601312.

The previous prime is 9427848001379. The next prime is 9427848001393. The reversal of 9427848001381 is 1831008487249.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 6171299324100 + 3256548677281 = 2484210^2 + 1804591^2 .

It is a cyclic number.

It is not a de Polignac number, because 9427848001381 - 2¹ = 9427848001379 is a prime.

It is a super-2 number, since 2×9427848001381² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9427848001321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2987640 + ... + 5270833.

It is an arithmetic number, because the mean of its divisors is an integer number (2356964350363).

Almost surely, 2^{9427848001381} is an apocalyptic number.

It is an amenable number.

9427848001381 is a deficient number, since it is larger than the sum of its proper divisors (9400071).

9427848001381 is a wasteful number, since it uses less digits than its factorization.

9427848001381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9400070.

The product of its (nonzero) digits is 3096576, while the sum is 55.

The spelling of 9427848001381 in words is "nine trillion, four hundred twenty-seven billion, eight hundred forty-eight million, one thousand, three hundred eighty-one".