2765154845 has 4 divisors (see below), whose sum is σ = 3318185820. Its totient is φ = 2212123872.

The previous prime is 2765154793. The next prime is 2765154857. The reversal of 2765154845 is 5484515672.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 935197561 + 1829957284 = 30581^2 + 42778^2 .

It is a cyclic number.

It is not a de Polignac number, because 2765154845 - 2¹² = 2765150749 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2765154845.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 276515480 + ... + 276515489.

It is an arithmetic number, because the mean of its divisors is an integer number (829546455).

Almost surely, 2^2765154845 is an apocalyptic number.

It is an amenable number.

2765154845 is a deficient number, since it is larger than the sum of its proper divisors (553030975).

2765154845 is an equidigital number, since it uses as much as digits as its factorization.

2765154845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553030974.

The product of its digits is 1344000, while the sum is 47.

The square root of 2765154845 is about 52584.7396589543. The cubic root of 2765154845 is about 1403.5885565117.

The spelling of 2765154845 in words is "two billion, seven hundred sixty-five million, one hundred fifty-four thousand, eight hundred forty-five".