1047821193238 has 16 divisors (see below), whose sum is σ = 1577473586640. Its totient is φ = 521997106176.

The previous prime is 1047821193203. The next prime is 1047821193247. The reversal of 1047821193238 is 8323911287401.

It is a super-2 number, since 2×1047821193238² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1047821193191 and 1047821193200.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4839198 + ... + 5051086.

It is an arithmetic number, because the mean of its divisors is an integer number (98592099165).

Almost surely, 2^{1047821193238} is an apocalyptic number.

1047821193238 is a deficient number, since it is larger than the sum of its proper divisors (529652393402).

1047821193238 is a wasteful number, since it uses less digits than its factorization.

1047821193238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220911.

The product of its (nonzero) digits is 580608, while the sum is 49.

The spelling of 1047821193238 in words is "one trillion, forty-seven billion, eight hundred twenty-one million, one hundred ninety-three thousand, two hundred thirty-eight".