378634614433 has 2 divisors, whose sum is σ = 378634614434. Its totient is φ = 378634614432.

The previous prime is 378634614359. The next prime is 378634614439. The reversal of 378634614433 is 334416436873.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 248589993744 + 130044620689 = 498588^2 + 360617^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-378634614433 is a prime.

It is a super-2 number, since 2×378634614433² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (378634614439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189317307216 + 189317307217.

It is an arithmetic number, because the mean of its divisors is an integer number (189317307217).

Almost surely, 2^378634614433 is an apocalyptic number.

It is an amenable number.

378634614433 is a deficient number, since it is larger than the sum of its proper divisors (1).

378634614433 is an equidigital number, since it uses as much as digits as its factorization.

378634614433 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10450944, while the sum is 52.

The spelling of 378634614433 in words is "three hundred seventy-eight billion, six hundred thirty-four million, six hundred fourteen thousand, four hundred thirty-three".