278181350041 has 9 divisors (see below), whose sum is σ = 323603008149. Its totient is φ = 238437992604.

The previous prime is 278181350039. The next prime is 278181350099. The reversal of 278181350041 is 140053181872.

The square root of 278181350041 is 527429.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 278181350041 - 2¹ = 278181350039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 278181349976 and 278181350003.

It is not an unprimeable number, because it can be changed into a prime (278181350021) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3654330 + ... + 3729676.

Almost surely, 2^278181350041 is an apocalyptic number.

278181350041 is the 527429-th square number.

278181350041 is the 263715-th centered octagonal number.

It is an amenable number.

278181350041 is a deficient number, since it is larger than the sum of its proper divisors (45421658108).

278181350041 is an frugal number, since it uses more digits than its factorization.

278181350041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150708 (or 75354 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 40.

The spelling of 278181350041 in words is "two hundred seventy-eight billion, one hundred eighty-one million, three hundred fifty thousand, forty-one".