1147821397594 has 16 divisors (see below), whose sum is σ = 1725042054528. Its totient is φ = 572807642032.

The previous prime is 1147821397577. The next prime is 1147821397601. The reversal of 1147821397594 is 4957931287411.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9322059 + ... + 9444385.

It is an arithmetic number, because the mean of its divisors is an integer number (107815128408).

Almost surely, 2^{1147821397594} is an apocalyptic number.

1147821397594 is a deficient number, since it is larger than the sum of its proper divisors (577220656934).

1147821397594 is a wasteful number, since it uses less digits than its factorization.

1147821397594 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131309.

The product of its digits is 15240960, while the sum is 61.

The spelling of 1147821397594 in words is "one trillion, one hundred forty-seven billion, eight hundred twenty-one million, three hundred ninety-seven thousand, five hundred ninety-four".