7543993108 has 12 divisors (see below), whose sum is σ = 13202653492. Its totient is φ = 3771806400.

The previous prime is 7543993043. The next prime is 7543993109. The reversal of 7543993108 is 8013993457.

It can be written as a sum of positive squares in 2 ways, for example, as 1992551044 + 5551442064 = 44638^2 + 74508^2 .

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7543993109) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 79366 + ... + 146242.

Almost surely, 2^7543993108 is an apocalyptic number.

It is an amenable number.

7543993108 is a deficient number, since it is larger than the sum of its proper divisors (5658660384).

7543993108 is a wasteful number, since it uses less digits than its factorization.

7543993108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95082 (or 95080 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 49.

The square root of 7543993108 is about 86856.1633276534. The cubic root of 7543993108 is about 1961.2536326056.

The spelling of 7543993108 in words is "seven billion, five hundred forty-three million, nine hundred ninety-three thousand, one hundred eight".