7081402064 has 30 divisors (see below), whose sum is σ = 15080903250. Its totient is φ = 3218818240.

The previous prime is 7081402061. The next prime is 7081402073. The reversal of 7081402064 is 4602041807.

It can be written as a sum of positive squares in only one way, i.e., 4609323664 + 2472078400 = 67892^2 + 49720^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 7081402064.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7081402061) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1826939 + ... + 1830810.

It is an arithmetic number, because the mean of its divisors is an integer number (502696775).

Almost surely, 2^7081402064 is an apocalyptic number.

It is an amenable number.

7081402064 is an abundant number, since it is smaller than the sum of its proper divisors (7999501186).

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

7081402064 is a wasteful number, since it uses less digits than its factorization.

7081402064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3657779 (or 3657762 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 7081402064 is about 84151.0669213409. The cubic root of 7081402064 is about 1920.3176977178.

The spelling of 7081402064 in words is "seven billion, eighty-one million, four hundred two thousand, sixty-four".