766550842 has 32 divisors (see below), whose sum is σ = 1260236880. Its totient is φ = 348241920.

The previous prime is 766550797. The next prime is 766550849. The reversal of 766550842 is 248055667.

766550842 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 169286121 + 597264721 = 13011^2 + 24439^2 .

It is not an unprimeable number, because it can be changed into a prime (766550849) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132384 + ... + 138052.

Almost surely, 2^766550842 is an apocalyptic number.

766550842 is a deficient number, since it is larger than the sum of its proper divisors (493686038).

766550842 is a wasteful number, since it uses less digits than its factorization.

766550842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5826.

The product of its (nonzero) digits is 403200, while the sum is 43.

The square root of 766550842 is about 27686.6545830297. The cubic root of 766550842 is about 915.1950342211.

The spelling of 766550842 in words is "seven hundred sixty-six million, five hundred fifty thousand, eight hundred forty-two".