771244742 has 16 divisors (see below), whose sum is σ = 1175319072. Its totient is φ = 379491840.

The previous prime is 771244741. The next prime is 771244757. The reversal of 771244742 is 247442177.

771244742 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 771244696 and 771244705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (771244741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77228 + ... + 86640.

It is an arithmetic number, because the mean of its divisors is an integer number (73457442).

Almost surely, 2^771244742 is an apocalyptic number.

771244742 is a deficient number, since it is larger than the sum of its proper divisors (404074330).

771244742 is a wasteful number, since it uses less digits than its factorization.

771244742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10063.

The product of its digits is 87808, while the sum is 38.

The square root of 771244742 is about 27771.2934880607. The cubic root of 771244742 is about 917.0592703419.

The spelling of 771244742 in words is "seven hundred seventy-one million, two hundred forty-four thousand, seven hundred forty-two".