378853453793 has 2 divisors, whose sum is σ = 378853453794. Its totient is φ = 378853453792.

The previous prime is 378853453757. The next prime is 378853453799. The reversal of 378853453793 is 397354358873.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 299130237184 + 79723216609 = 546928^2 + 282353^2 .

It is a cyclic number.

It is not a de Polignac number, because 378853453793 - 2³⁸ = 103975546849 is a prime.

It is not a weakly prime, because it can be changed into another prime (378853453799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189426726896 + 189426726897.

It is an arithmetic number, because the mean of its divisors is an integer number (189426726897).

Almost surely, 2^378853453793 is an apocalyptic number.

It is an amenable number.

378853453793 is a deficient number, since it is larger than the sum of its proper divisors (1).

378853453793 is an equidigital number, since it uses as much as digits as its factorization.

378853453793 is an evil number, because the sum of its binary digits is even.

The product of its digits is 228614400, while the sum is 65.

The spelling of 378853453793 in words is "three hundred seventy-eight billion, eight hundred fifty-three million, four hundred fifty-three thousand, seven hundred ninety-three".