275400628688 has 20 divisors (see below), whose sum is σ = 550801258368. Its totient is φ = 133258368480.

The previous prime is 275400628561. The next prime is 275400628709. The reversal of 275400628688 is 886826004572.

It is a happy number.

275400628688 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 277621106 + ... + 277622097.

Almost surely, 2^275400628688 is an apocalyptic number.

It is an amenable number.

275400628688 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

275400628688 is a wasteful number, since it uses less digits than its factorization.

275400628688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555243242 (or 555243236 counting only the distinct ones).

The product of its (nonzero) digits is 10321920, while the sum is 56.

The spelling of 275400628688 in words is "two hundred seventy-five billion, four hundred million, six hundred twenty-eight thousand, six hundred eighty-eight".