7499929993 has 4 divisors (see below), whose sum is σ = 7504128720. Its totient is φ = 7495731268.

The previous prime is 7499929981. The next prime is 7499930003. The reversal of 7499929993 is 3999299947.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3999299947 = 36469 ⋅109663.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7499929993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7499989993) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2096683 + ... + 2100256.

It is an arithmetic number, because the mean of its divisors is an integer number (1876032180).

Almost surely, 2^7499929993 is an apocalyptic number.

It is an amenable number.

7499929993 is a deficient number, since it is larger than the sum of its proper divisors (4198727).

7499929993 is a wasteful number, since it uses less digits than its factorization.

7499929993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4198726.

The product of its digits is 89282088, while the sum is 70.

The square root of 7499929993 is about 86602.1361918977. The cubic root of 7499929993 is about 1957.4277301624.

The spelling of 7499929993 in words is "seven billion, four hundred ninety-nine million, nine hundred twenty-nine thousand, nine hundred ninety-three".