7124571664 has 40 divisors (see below), whose sum is σ = 16606149440. Its totient is φ = 2892682368.

The previous prime is 7124571661. The next prime is 7124571673. The reversal of 7124571664 is 4661754217.

It is a self number, because there is not a number n which added to its sum of digits gives 7124571664.

It is not an unprimeable number, because it can be changed into a prime (7124571661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1671879 + ... + 1676134.

It is an arithmetic number, because the mean of its divisors is an integer number (415153736).

Almost surely, 2^7124571664 is an apocalyptic number.

It is an amenable number.

7124571664 is an abundant number, since it is smaller than the sum of its proper divisors (9481577776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7124571664 is a wasteful number, since it uses less digits than its factorization.

7124571664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3348047 (or 3348041 counting only the distinct ones).

The product of its digits is 282240, while the sum is 43.

The square root of 7124571664 is about 84407.1777990474. The cubic root of 7124571664 is about 1924.2120045948.

The spelling of 7124571664 in words is "seven billion, one hundred twenty-four million, five hundred seventy-one thousand, six hundred sixty-four".