7487850321 has 48 divisors (see below), whose sum is σ = 12780768000. Its totient is φ = 4134996864.

The previous prime is 7487850313. The next prime is 7487850367. The reversal of 7487850321 is 1230587847.

7487850321 is a `hidden beast` number, since 74 + 8 + 78 + 503 + 2 + 1 = 666.

It is not a de Polignac number, because 7487850321 - 2³ = 7487850313 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7487850121) 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 47 ways as a sum of consecutive naturals, for example, 336540 + ... + 358098.

It is an arithmetic number, because the mean of its divisors is an integer number (266266000).

Almost surely, 2^7487850321 is an apocalyptic number.

It is an amenable number.

7487850321 is a deficient number, since it is larger than the sum of its proper divisors (5292917679).

7487850321 is a wasteful number, since it uses less digits than its factorization.

7487850321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21758 (or 21755 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 45.

The square root of 7487850321 is about 86532.3657425359. The cubic root of 7487850321 is about 1956.3762629756.

The spelling of 7487850321 in words is "seven billion, four hundred eighty-seven million, eight hundred fifty thousand, three hundred twenty-one".