2758378633 has 2 divisors, whose sum is σ = 2758378634. Its totient is φ = 2758378632.

The previous prime is 2758378631. The next prime is 2758378681. The reversal of 2758378633 is 3368738572.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2751212304 + 7166329 = 52452^2 + 2677^2 .

It is a cyclic number.

It is not a de Polignac number, because 2758378633 - 2¹ = 2758378631 is a prime.

Together with 2758378631, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2758378631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1379189316 + 1379189317.

It is an arithmetic number, because the mean of its divisors is an integer number (1379189317).

Almost surely, 2^2758378633 is an apocalyptic number.

It is an amenable number.

2758378633 is a deficient number, since it is larger than the sum of its proper divisors (1).

2758378633 is an equidigital number, since it uses as much as digits as its factorization.

2758378633 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5080320, while the sum is 52.

The square root of 2758378633 is about 52520.2687826329. The cubic root of 2758378633 is about 1402.4410869135.

The spelling of 2758378633 in words is "two billion, seven hundred fifty-eight million, three hundred seventy-eight thousand, six hundred thirty-three".