775064742 has 8 divisors (see below), whose sum is σ = 1550129496. Its totient is φ = 258354912.

The previous prime is 775064737. The next prime is 775064743. The reversal of 775064742 is 247460577.

It is a sphenic number, since it is the product of 3 distinct primes.

775064742 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 775064694 and 775064703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (775064743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64588723 + ... + 64588734.

It is an arithmetic number, because the mean of its divisors is an integer number (193766187).

Almost surely, 2^775064742 is an apocalyptic number.

775064742 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

775064742 is a wasteful number, since it uses less digits than its factorization.

775064742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129177462.

The product of its (nonzero) digits is 329280, while the sum is 42.

The square root of 775064742 is about 27839.9845905130. The cubic root of 775064742 is about 918.5708521264.

The spelling of 775064742 in words is "seven hundred seventy-five million, sixty-four thousand, seven hundred forty-two".