7500040947 has 24 divisors (see below), whose sum is σ = 12520141920. Its totient is φ = 4237580160.

The previous prime is 7500040939. The next prime is 7500040957. The reversal of 7500040947 is 7490400057.

It is a happy number.

It is not a de Polignac number, because 7500040947 - 2³ = 7500040939 is a prime.

It is a super-2 number, since 2×7500040947² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7500040957) 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 23 ways as a sum of consecutive naturals, for example, 663204 + ... + 674417.

It is an arithmetic number, because the mean of its divisors is an integer number (521672580).

Almost surely, 2^7500040947 is an apocalyptic number.

7500040947 is a deficient number, since it is larger than the sum of its proper divisors (5020100973).

7500040947 is a wasteful number, since it uses less digits than its factorization.

7500040947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1337723 (or 1337720 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 7500040947 is about 86602.7767857359. The cubic root of 7500040947 is about 1957.4373828465.

The spelling of 7500040947 in words is "seven billion, five hundred million, forty thousand, nine hundred forty-seven".