427748879275 has 24 divisors (see below), whose sum is σ = 532356645744. Its totient is φ = 340943241600.

The previous prime is 427748879269. The next prime is 427748879279. The reversal of 427748879275 is 572978847724.

It is not a de Polignac number, because 427748879275 - 2³ = 427748879267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (427748879279) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21027009 + ... + 21047341.

It is an arithmetic number, because the mean of its divisors is an integer number (22181526906).

Almost surely, 2^427748879275 is an apocalyptic number.

427748879275 is a deficient number, since it is larger than the sum of its proper divisors (104607766469).

427748879275 is a wasteful number, since it uses less digits than its factorization.

427748879275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23391 (or 23386 counting only the distinct ones).

The product of its digits is 442552320, while the sum is 70.

The spelling of 427748879275 in words is "four hundred twenty-seven billion, seven hundred forty-eight million, eight hundred seventy-nine thousand, two hundred seventy-five".