7638250007 has 4 divisors (see below), whose sum is σ = 7674450456. Its totient is φ = 7602049560.

The previous prime is 7638249989. The next prime is 7638250019. The reversal of 7638250007 is 7000528367.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7000528367 = 7 ⋅1000075481.

It is a cyclic number.

It is not a de Polignac number, because 7638250007 - 2⁶ = 7638249943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7638250307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18099908 + ... + 18100329.

It is an arithmetic number, because the mean of its divisors is an integer number (1918612614).

Almost surely, 2^7638250007 is an apocalyptic number.

7638250007 is a deficient number, since it is larger than the sum of its proper divisors (36200449).

7638250007 is a wasteful number, since it uses less digits than its factorization.

7638250007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36200448.

The product of its (nonzero) digits is 70560, while the sum is 38.

The square root of 7638250007 is about 87397.0823712096. The cubic root of 7638250007 is about 1969.3880108353.

The spelling of 7638250007 in words is "seven billion, six hundred thirty-eight million, two hundred fifty thousand, seven".