378755254873 has 2 divisors, whose sum is σ = 378755254874. Its totient is φ = 378755254872.

The previous prime is 378755254861. The next prime is 378755254883. The reversal of 378755254873 is 378452557873.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 217185825024 + 161569429849 = 466032^2 + 401957^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-378755254873 is a prime.

It is a super-2 number, since 2×378755254873² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (378755254883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189377627436 + 189377627437.

It is an arithmetic number, because the mean of its divisors is an integer number (189377627437).

Almost surely, 2^378755254873 is an apocalyptic number.

It is an amenable number.

378755254873 is a deficient number, since it is larger than the sum of its proper divisors (1).

378755254873 is an equidigital number, since it uses as much as digits as its factorization.

378755254873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 197568000, while the sum is 64.

The spelling of 378755254873 in words is "three hundred seventy-eight billion, seven hundred fifty-five million, two hundred fifty-four thousand, eight hundred seventy-three".