2765630399 has 4 divisors (see below), whose sum is σ = 3160720464. Its totient is φ = 2370540336.

The previous prime is 2765630389. The next prime is 2765630437. The reversal of 2765630399 is 9930365672.

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

It is a cyclic number.

It is not a de Polignac number, because 2765630399 - 2¹⁶ = 2765564863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2765630339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 197545022 + ... + 197545035.

It is an arithmetic number, because the mean of its divisors is an integer number (790180116).

Almost surely, 2^2765630399 is an apocalyptic number.

2765630399 is a deficient number, since it is larger than the sum of its proper divisors (395090065).

2765630399 is an equidigital number, since it uses as much as digits as its factorization.

2765630399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395090064.

The product of its (nonzero) digits is 1837080, while the sum is 50.

The square root of 2765630399 is about 52589.2612517042. The cubic root of 2765630399 is about 1403.6690154044.

The spelling of 2765630399 in words is "two billion, seven hundred sixty-five million, six hundred thirty thousand, three hundred ninety-nine".