7770734442 has 24 divisors (see below), whose sum is σ = 17826979716. Its totient is φ = 2437877376.

The previous prime is 7770734423. The next prime is 7770734453. The reversal of 7770734442 is 2444370777.

7770734442 is a `hidden beast` number, since 77 + 70 + 73 + 4 + 442 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 6620914161 + 1149820281 = 81369^2 + 33909^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12696973 + ... + 12697584.

Almost surely, 2^7770734442 is an apocalyptic number.

7770734442 is an abundant number, since it is smaller than the sum of its proper divisors (10056245274).

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

7770734442 is a wasteful number, since it uses less digits than its factorization.

7770734442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25394582 (or 25394579 counting only the distinct ones).

The product of its (nonzero) digits is 921984, while the sum is 45.

The square root of 7770734442 is about 88151.7693639782. The cubic root of 7770734442 is about 1980.7090649909.

The spelling of 7770734442 in words is "seven billion, seven hundred seventy million, seven hundred thirty-four thousand, four hundred forty-two".