278134875371 has 12 divisors (see below), whose sum is σ = 279489205800. Its totient is φ = 276786820800.

The previous prime is 278134875329. The next prime is 278134875373. The reversal of 278134875371 is 173578431872.

It is not a de Polignac number, because 278134875371 - 2²² = 278130681067 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (278134875373) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 80640455 + ... + 80643903.

It is an arithmetic number, because the mean of its divisors is an integer number (23290767150).

Almost surely, 2^278134875371 is an apocalyptic number.

278134875371 is a deficient number, since it is larger than the sum of its proper divisors (1354330429).

278134875371 is an equidigital number, since it uses as much as digits as its factorization.

278134875371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5054 (or 4777 counting only the distinct ones).

The product of its digits is 7902720, while the sum is 56.

The spelling of 278134875371 in words is "two hundred seventy-eight billion, one hundred thirty-four million, eight hundred seventy-five thousand, three hundred seventy-one".