766542172 has 48 divisors (see below), whose sum is σ = 1591416288. Its totient is φ = 319057920.

The previous prime is 766542163. The next prime is 766542187. The reversal of 766542172 is 271245667.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 13828 + ... + 41524.

It is an arithmetic number, because the mean of its divisors is an integer number (33154506).

Almost surely, 2^766542172 is an apocalyptic number.

It is an amenable number.

766542172 is an abundant number, since it is smaller than the sum of its proper divisors (824874116).

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

766542172 is a wasteful number, since it uses less digits than its factorization.

766542172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27766 (or 27764 counting only the distinct ones).

The product of its digits is 141120, while the sum is 40.

The square root of 766542172 is about 27686.4980089574. The cubic root of 766542172 is about 915.1915837995.

The spelling of 766542172 in words is "seven hundred sixty-six million, five hundred forty-two thousand, one hundred seventy-two".