772161265 has 16 divisors (see below), whose sum is σ = 942039360. Its totient is φ = 607464000.

The previous prime is 772161259. The next prime is 772161283. The reversal of 772161265 is 562161277.

It is not a de Polignac number, because 772161265 - 2¹⁹ = 771636977 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 235890 + ... + 239140.

It is an arithmetic number, because the mean of its divisors is an integer number (58877460).

Almost surely, 2^772161265 is an apocalyptic number.

It is an amenable number.

772161265 is a deficient number, since it is larger than the sum of its proper divisors (169878095).

772161265 is a wasteful number, since it uses less digits than its factorization.

772161265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4032.

The product of its digits is 35280, while the sum is 37.

The square root of 772161265 is about 27787.7898545386. The cubic root of 772161265 is about 917.4223946715.

It can be divided in two parts, 7721 and 61265, that added together give a palindrome (68986).

The spelling of 772161265 in words is "seven hundred seventy-two million, one hundred sixty-one thousand, two hundred sixty-five".