74221006812532 has 24 divisors (see below), whose sum is σ = 132043827192480. Its totient is φ = 36499189362720.

The previous prime is 74221006812517. The next prime is 74221006812559. The reversal of 74221006812532 is 23521860012247.

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, 623730319 + ... + 623849302.

It is an arithmetic number, because the mean of its divisors is an integer number (5501826133020).

Almost surely, 2^{74221006812532} is an apocalyptic number.

It is an amenable number.

74221006812532 is a deficient number, since it is larger than the sum of its proper divisors (57822820379948).

74221006812532 is a wasteful number, since it uses less digits than its factorization.

74221006812532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1247579871 (or 1247579869 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 43.

Adding to 74221006812532 its reverse (23521860012247), we get a palindrome (97742866824779).

The spelling of 74221006812532 in words is "seventy-four trillion, two hundred twenty-one billion, six million, eight hundred twelve thousand, five hundred thirty-two".