378440460331 has 2 divisors, whose sum is σ = 378440460332. Its totient is φ = 378440460330.

The previous prime is 378440460287. The next prime is 378440460337. The reversal of 378440460331 is 133064044873.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 378440460331 - 2²³ = 378432071723 is a prime.

It is a super-2 number, since 2×378440460331² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (378440460337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189220230165 + 189220230166.

It is an arithmetic number, because the mean of its divisors is an integer number (189220230166).

Almost surely, 2^378440460331 is an apocalyptic number.

378440460331 is a deficient number, since it is larger than the sum of its proper divisors (1).

378440460331 is an equidigital number, since it uses as much as digits as its factorization.

378440460331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 580608, while the sum is 43.

The spelling of 378440460331 in words is "three hundred seventy-eight billion, four hundred forty million, four hundred sixty thousand, three hundred thirty-one".