767680650 has 72 divisors (see below), whose sum is σ = 2250016704. Its totient is φ = 186103200.

The previous prime is 767680633. The next prime is 767680651. The reversal of 767680650 is 56086767.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 767680596 and 767680605.

It is not an unprimeable number, because it can be changed into a prime (767680651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 72594 + ... + 82493.

It is an arithmetic number, because the mean of its divisors is an integer number (31250232).

Almost surely, 2^767680650 is an apocalyptic number.

767680650 is an abundant number, since it is smaller than the sum of its proper divisors (1482336054).

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

767680650 is a wasteful number, since it uses less digits than its factorization.

767680650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155116 (or 155108 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The square root of 767680650 is about 27707.0505467471. The cubic root of 767680650 is about 915.6444443292.

The spelling of 767680650 in words is "seven hundred sixty-seven million, six hundred eighty thousand, six hundred fifty".