775732668 has 24 divisors (see below), whose sum is σ = 1828705872. Its totient is φ = 255911424.

The previous prime is 775732663. The next prime is 775732673. The reversal of 775732668 is 866237577.

It is an interprime number because it is at equal distance from previous prime (775732663) and next prime (775732673).

It is a super-2 number, since 2×775732668² = 1203522344404796448, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 775732668.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (775732663) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 332055 + ... + 334382.

It is an arithmetic number, because the mean of its divisors is an integer number (76196078).

Almost surely, 2^775732668 is an apocalyptic number.

It is an amenable number.

775732668 is an abundant number, since it is smaller than the sum of its proper divisors (1052973204).

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

775732668 is a wasteful number, since it uses less digits than its factorization.

775732668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666541 (or 666539 counting only the distinct ones).

The product of its digits is 2963520, while the sum is 51.

The square root of 775732668 is about 27851.9778112794. The cubic root of 775732668 is about 918.8346413575.

The spelling of 775732668 in words is "seven hundred seventy-five million, seven hundred thirty-two thousand, six hundred sixty-eight".