74637797522 has 6 divisors (see below), whose sum is σ = 111957275829. Its totient is φ = 37318705580.

The previous prime is 74637797501. The next prime is 74637797537. The reversal of 74637797522 is 22579773647.

It can be written as a sum of positive squares in 2 ways, for example, as 64963304641 + 9674492881 = 254879^2 + 98359^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=193181.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 289772 + ... + 482952.

Almost surely, 2^74637797522 is an apocalyptic number.

74637797522 is a deficient number, since it is larger than the sum of its proper divisors (37319478307).

74637797522 is an frugal number, since it uses more digits than its factorization.

74637797522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386364 (or 193183 counting only the distinct ones).

The product of its digits is 31116960, while the sum is 59.

The spelling of 74637797522 in words is "seventy-four billion, six hundred thirty-seven million, seven hundred ninety-seven thousand, five hundred twenty-two".