3454778863 has 2 divisors, whose sum is σ = 3454778864. Its totient is φ = 3454778862.

The previous prime is 3454778861. The next prime is 3454778893. The reversal of 3454778863 is 3688774543.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3454778863 - 2¹ = 3454778861 is a prime.

Together with 3454778861, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3454778861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1727389431 + 1727389432.

It is an arithmetic number, because the mean of its divisors is an integer number (1727389432).

Almost surely, 2^3454778863 is an apocalyptic number.

3454778863 is a deficient number, since it is larger than the sum of its proper divisors (1).

3454778863 is an equidigital number, since it uses as much as digits as its factorization.

3454778863 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13547520, while the sum is 55.

The square root of 3454778863 is about 58777.3669280957. The cubic root of 3454778863 is about 1511.7271675759.

The spelling of 3454778863 in words is "three billion, four hundred fifty-four million, seven hundred seventy-eight thousand, eight hundred sixty-three".