275087861920 has 48 divisors (see below), whose sum is σ = 654199072128. Its totient is φ = 109306425600.

The previous prime is 275087861869. The next prime is 275087861921. The reversal of 275087861920 is 29168780572.

It is not an unprimeable number, because it can be changed into a prime (275087861921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5668884 + ... + 5717203.

It is an arithmetic number, because the mean of its divisors is an integer number (13629147336).

Almost surely, 2^275087861920 is an apocalyptic number.

275087861920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

275087861920 is an abundant number, since it is smaller than the sum of its proper divisors (379111210208).

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

275087861920 is a wasteful number, since it uses less digits than its factorization.

275087861920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11386253 (or 11386245 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 55.

The spelling of 275087861920 in words is "two hundred seventy-five billion, eighty-seven million, eight hundred sixty-one thousand, nine hundred twenty".