2758738263 has 4 divisors (see below), whose sum is σ = 3678317688. Its totient is φ = 1839158840.

The previous prime is 2758738219. The next prime is 2758738271. The reversal of 2758738263 is 3628378572.

It is a happy number.

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 2758738263 - 2¹⁶ = 2758672727 is a prime.

It is a super-2 number, since 2×2758738263² = 15221273607480514338, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2758738063) 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, 459789708 + ... + 459789713.

It is an arithmetic number, because the mean of its divisors is an integer number (919579422).

Almost surely, 2^2758738263 is an apocalyptic number.

2758738263 is a deficient number, since it is larger than the sum of its proper divisors (919579425).

2758738263 is an equidigital number, since it uses as much as digits as its factorization.

2758738263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 919579424.

The product of its digits is 3386880, while the sum is 51.

The square root of 2758738263 is about 52523.6923968603. The cubic root of 2758738263 is about 1402.5020330994.

The spelling of 2758738263 in words is "two billion, seven hundred fifty-eight million, seven hundred thirty-eight thousand, two hundred sixty-three".