278259097341 has 4 divisors (see below), whose sum is σ = 371012129792. Its totient is φ = 185506064892.

The previous prime is 278259097339. The next prime is 278259097343. The reversal of 278259097341 is 143790952872.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (278259097339) and next prime (278259097343).

It is not a de Polignac number, because 278259097341 - 2¹ = 278259097339 is a prime.

It is a super-2 number, since 2×278259097341² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (278259097343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46376516221 + ... + 46376516226.

It is an arithmetic number, because the mean of its divisors is an integer number (92753032448).

Almost surely, 2^278259097341 is an apocalyptic number.

It is an amenable number.

278259097341 is a deficient number, since it is larger than the sum of its proper divisors (92753032451).

278259097341 is an equidigital number, since it uses as much as digits as its factorization.

278259097341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92753032450.

The product of its (nonzero) digits is 7620480, while the sum is 57.

The spelling of 278259097341 in words is "two hundred seventy-eight billion, two hundred fifty-nine million, ninety-seven thousand, three hundred forty-one".