772633807261 has 8 divisors (see below), whose sum is σ = 788852503040. Its totient is φ = 756567400032.

The previous prime is 772633807249. The next prime is 772633807289. The reversal of 772633807261 is 162708336277.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 772633807261 - 2³⁵ = 738274068893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 772633807199 and 772633807208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (772633817261) 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, 38061885 + ... + 38082178.

It is an arithmetic number, because the mean of its divisors is an integer number (98606562880).

Almost surely, 2^772633807261 is an apocalyptic number.

It is an amenable number.

772633807261 is a deficient number, since it is larger than the sum of its proper divisors (16218695779).

772633807261 is a wasteful number, since it uses less digits than its factorization.

772633807261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76144275.

The product of its (nonzero) digits is 3556224, while the sum is 52.

The spelling of 772633807261 in words is "seven hundred seventy-two billion, six hundred thirty-three million, eight hundred seven thousand, two hundred sixty-one".