7977227965 has 8 divisors (see below), whose sum is σ = 10940198400. Its totient is φ = 5470099152.

The previous prime is 7977227959. The next prime is 7977228001. The reversal of 7977227965 is 5697227797.

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

It is not a de Polignac number, because 7977227965 - 2¹⁹ = 7976703677 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113960365 + ... + 113960434.

It is an arithmetic number, because the mean of its divisors is an integer number (1367524800).

Almost surely, 2^7977227965 is an apocalyptic number.

It is an amenable number.

7977227965 is a deficient number, since it is larger than the sum of its proper divisors (2962970435).

7977227965 is a wasteful number, since it uses less digits than its factorization.

7977227965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227920811.

The product of its digits is 23337720, while the sum is 61.

The square root of 7977227965 is about 89315.3288355364. The cubic root of 7977227965 is about 1998.1005269889.

The spelling of 7977227965 in words is "seven billion, nine hundred seventy-seven million, two hundred twenty-seven thousand, nine hundred sixty-five".