7945152938 has 16 divisors (see below), whose sum is σ = 12438759816. Its totient is φ = 3802556160.

The previous prime is 7945152937. The next prime is 7945152953. The reversal of 7945152938 is 8392515497.

It can be written as a sum of positive squares in 4 ways, for example, as 5403279049 + 2541873889 = 73507^2 + 50417^2 .

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a self number, because there is not a number n which added to its sum of digits gives 7945152938.

It is not an unprimeable number, because it can be changed into a prime (7945152937) 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 7 ways as a sum of consecutive naturals, for example, 909731 + ... + 918422.

Almost surely, 2^7945152938 is an apocalyptic number.

7945152938 is a deficient number, since it is larger than the sum of its proper divisors (4493606878).

7945152938 is a wasteful number, since it uses less digits than its factorization.

7945152938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1828249.

The product of its digits is 2721600, while the sum is 53.

The square root of 7945152938 is about 89135.5873823693. The cubic root of 7945152938 is about 1995.4189263939.

The spelling of 7945152938 in words is "seven billion, nine hundred forty-five million, one hundred fifty-two thousand, nine hundred thirty-eight".