7775434064 has 80 divisors (see below), whose sum is σ = 16151942400. Its totient is φ = 3619219968.

The previous prime is 7775434033. The next prime is 7775434127. The reversal of 7775434064 is 4604345777.

It is a super-2 number, since 2×7775434064² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1573742 + ... + 1578674.

It is an arithmetic number, because the mean of its divisors is an integer number (201899280).

Almost surely, 2^7775434064 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 7775434064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8075971200).

7775434064 is an abundant number, since it is smaller than the sum of its proper divisors (8376508336).

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

7775434064 is a wasteful number, since it uses less digits than its factorization.

7775434064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5092 (or 5086 counting only the distinct ones).

The product of its (nonzero) digits is 1975680, while the sum is 47.

The square root of 7775434064 is about 88178.4217595212. The cubic root of 7775434064 is about 1981.1082854264.

The spelling of 7775434064 in words is "seven billion, seven hundred seventy-five million, four hundred thirty-four thousand, sixty-four".