7046549640 has 480 divisors, whose sum is σ = 27190718280. Its totient is φ = 1630347264.

The previous prime is 7046549599. The next prime is 7046549647. The reversal of 7046549640 is 469456407.

7046549640 is a `hidden beast` number, since 7 + 0 + 46 + 549 + 64 + 0 = 666.

It can be written as a sum of positive squares in 12 ways, for example, as 133957476 + 6912592164 = 11574^2 + 83142^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (7046549647) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 9308142 + ... + 9308898.

Almost surely, 2^7046549640 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7046549640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13595359140).

7046549640 is an abundant number, since it is smaller than the sum of its proper divisors (20144168640).

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

7046549640 is a wasteful number, since it uses less digits than its factorization.

7046549640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 823 (or 797 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

The square root of 7046549640 is about 83943.7290093787. The cubic root of 7046549640 is about 1917.1621160848.

The spelling of 7046549640 in words is "seven billion, forty-six million, five hundred forty-nine thousand, six hundred forty".