3818535221374 has 16 divisors (see below), whose sum is σ = 5852606372928. Its totient is φ = 1867707199872.

The previous prime is 3818535221357. The next prime is 3818535221383. The reversal of 3818535221374 is 4731225358183.

It is a happy number.

It is a super-2 number, since 2×3818535221374² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10004007 + ... + 10378690.

It is an arithmetic number, because the mean of its divisors is an integer number (365787898308).

Almost surely, 2^{3818535221374} is an apocalyptic number.

3818535221374 is a deficient number, since it is larger than the sum of its proper divisors (2034071151554).

3818535221374 is a wasteful number, since it uses less digits than its factorization.

3818535221374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20384739.

The product of its digits is 4838400, while the sum is 52.

The spelling of 3818535221374 in words is "three trillion, eight hundred eighteen billion, five hundred thirty-five million, two hundred twenty-one thousand, three hundred seventy-four".