7065429390 has 128 divisors (see below), whose sum is σ = 19395210240. Its totient is φ = 1829520000.

The previous prime is 7065429379. The next prime is 7065429391. The reversal of 7065429390 is 939245607.

It is a happy number.

7065429390 is a `hidden beast` number, since 70 + 6 + 542 + 9 + 39 + 0 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7065429391) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1281640 + ... + 1287140.

It is an arithmetic number, because the mean of its divisors is an integer number (151525080).

Almost surely, 2^7065429390 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7065429390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9697605120).

7065429390 is an abundant number, since it is smaller than the sum of its proper divisors (12329780850).

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

7065429390 is a wasteful number, since it uses less digits than its factorization.

7065429390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5655 (or 5649 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 45.

The square root of 7065429390 is about 84056.1085823035. The cubic root of 7065429390 is about 1918.8728002836.

The spelling of 7065429390 in words is "seven billion, sixty-five million, four hundred twenty-nine thousand, three hundred ninety".