9772745277 has 16 divisors (see below), whose sum is σ = 13198445568. Its totient is φ = 6431237040.

The previous prime is 9772745243. The next prime is 9772745299. The reversal of 9772745277 is 7725472779.

It is not a de Polignac number, because 9772745277 - 2¹⁹ = 9772220989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9772745677) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 290578 + ... + 322460.

It is an arithmetic number, because the mean of its divisors is an integer number (824902848).

Almost surely, 2^9772745277 is an apocalyptic number.

It is an amenable number.

9772745277 is a deficient number, since it is larger than the sum of its proper divisors (3425700291).

9772745277 is a wasteful number, since it uses less digits than its factorization.

9772745277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33200.

The product of its digits is 12101040, while the sum is 57.

The square root of 9772745277 is about 98857.1963844818. The cubic root of 9772745277 is about 2137.9892952438.

The spelling of 9772745277 in words is "nine billion, seven hundred seventy-two million, seven hundred forty-five thousand, two hundred seventy-seven".