7712277345 has 12 divisors (see below), whose sum is σ = 13367947476. Its totient is φ = 4113214560.

The previous prime is 7712277323. The next prime is 7712277347. The reversal of 7712277345 is 5437722177.

It can be written as a sum of positive squares in 2 ways, for example, as 5811927696 + 1900349649 = 76236^2 + 43593^2 .

It is not a de Polignac number, because 7712277345 - 2¹³ = 7712269153 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 171383941 = 7712277345 / (7 + 7 + 1 + 2 + 2 + 7 + 7 + 3 + 4 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 7712277345.

It is not an unprimeable number, because it can be changed into a prime (7712277347) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 85691926 + ... + 85692015.

It is an arithmetic number, because the mean of its divisors is an integer number (1113995623).

Almost surely, 2^7712277345 is an apocalyptic number.

It is an amenable number.

7712277345 is a deficient number, since it is larger than the sum of its proper divisors (5655670131).

7712277345 is a wasteful number, since it uses less digits than its factorization.

7712277345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171383952 (or 171383949 counting only the distinct ones).

The product of its digits is 576240, while the sum is 45.

The square root of 7712277345 is about 87819.5726760271. The cubic root of 7712277345 is about 1975.7297816860.

The spelling of 7712277345 in words is "seven billion, seven hundred twelve million, two hundred seventy-seven thousand, three hundred forty-five".