7421943316 has 12 divisors (see below), whose sum is σ = 13008055060. Its totient is φ = 3705356160.

The previous prime is 7421943313. The next prime is 7421943329. The reversal of 7421943316 is 6133491247.

It can be written as a sum of positive squares in 2 ways, for example, as 5829933316 + 1592010000 = 76354^2 + 39900^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7421943313) 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, 1400901 + ... + 1406188.

Almost surely, 2^7421943316 is an apocalyptic number.

It is an amenable number.

7421943316 is a deficient number, since it is larger than the sum of its proper divisors (5586111744).

7421943316 is a wasteful number, since it uses less digits than its factorization.

7421943316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2807754 (or 2807752 counting only the distinct ones).

The product of its digits is 108864, while the sum is 40.

The square root of 7421943316 is about 86150.7011927355. The cubic root of 7421943316 is about 1950.6194232920.

The spelling of 7421943316 in words is "seven billion, four hundred twenty-one million, nine hundred forty-three thousand, three hundred sixteen".